Notable Deaths on May 30

Jacquetta of Luxembourg was a member of the House of Luxembourg and a prominent figure in the English civil wars known as the Wars of the Roses (1455–1487). Through her short-lived first marriage to John of Lancaster, 1st Duke of Bedford, brother of Henry V of England, she was initially firmly allied to the House of Lancaster. However, following the emphatic Lancastrian defeat at the Battle of Towton, she and her second husband Richard Woodville defected and sided closely with the House of York. Three years after the battle and the accession of Edward IV of England, Jacquetta's eldest daughter Elizabeth Woodville married him and became queen consort of England. Jacquetta bore Woodville 14 children and later stood trial on charges of witchcraft, of which she was exonerated.

Ferdinand III, called the Saint, was King of Castile from 1217 and King of León from 1230 as well as King of Galicia from 1231. He was the son of Alfonso IX of León and Berengaria of Castile. Through his second marriage he was also Count of Aumale. Ferdinand III was one of the most successful kings of Castile, securing not only the permanent union of the crowns of Castile and León, but also masterminding the most expansive southward territorial expansion campaign yet in the Guadalquivir Valley, in which Islamic rule was in disarray in the wake of the defeat of the Almohad caliphate at the Battle of Las Navas de Tolosa. His repeated and decisive victories against the Islamic Caliphate earned him the title Athleta Christi, meaning 'Champion of Christ', which was conferred upon him by Pope Gregory IX.

Sir Andrew Fielding Huxley was an English physiologist and biophysicist. He was born into the prominent Huxley family. After leaving Westminster School in central London, he went to Trinity College, Cambridge, on a scholarship, after which he joined Alan Hodgkin to study nerve impulses. Their eventual discovery of the basis for propagation of nerve impulses earned them the Nobel Prize in Physiology or Medicine in 1963. They made their discovery from the giant axon of the Atlantic squid. Soon after the outbreak of the Second World War, Huxley was recruited by the British Anti-Aircraft Command and later transferred to the Admiralty. After the war he resumed research at the University of Cambridge, where he developed interference microscopy that would be suitable for studying muscle fibres.

Gordon Lee "Tex" Beneke was an American saxophonist, singer, and bandleader. His career is a history of associations with bandleader Glenn Miller and former musicians and singers who worked with Miller. His band is also associated with the careers of Eydie Gormé, Henry Mancini, and Ronnie Deauville. Beneke also solos on the recording the Glenn Miller Orchestra made of their popular song "In the Mood" and sings on another popular Glenn Miller recording, "Chattanooga Choo Choo". Jazz critic Will Friedwald considers Beneke to be one of the major blues singers who sang with the big bands of the early 1940s.

Edward Joseph Drake was an English football player and manager. As a player, he first played for Southampton but made his name playing for Arsenal in the 1930s, winning two league titles and an FA Cup, as well as five caps for England. Drake is Arsenal's joint fifth highest goalscorer of all time. He also holds the record for the most goals scored in a top flight game in English football, with seven against Aston Villa in December 1935. A former centre forward, Drake has been described as a "classic number 9" and as a "strong, powerful, brave and almost entirely unthinking" player who "typified the English view."

Mary Hannah Gray Clarke was an American author, correspondent, and poet from Rhode Island. She wrote extensively for magazines and for the public press, and was also the author of many dramas, lyric poems, operettas, stories for the young, and essays. In addition to the operettas, "Just Like Cinderella" and "Jack Frost's Visit to the Fairies", her works included "Effle, Fairy Queen of Dolls," "Prince Pussin-Boots," "Golden Hair and her Knight of the Beanstalk in the Enchanted Forest," "Obed Owler and the Prize Writers," "How I Came to Leave Town and What Came of It," "Edith Morton, the Sensible Young Lady;" "The Story that the Willow Basket Told to Faith Fairchild;" "English Lyrics;" and "Home;" as well as a number of songs, such as "Were it not for Dreams;" "Twittering Swallow;" "Robin, Robin, Bold and Free;" "Down by the River;" "Not to Blame;" and "Our-Leafed Clover."

Louis Trolle Hjelmslev was a Danish linguist whose ideas formed the basis of the Copenhagen School of linguistics. Born into an academic family, Hjelmslev studied comparative linguistics in Copenhagen, Prague and Paris. In 1931, he founded the Cercle Linguistique de Copenhague. Together with Hans Jørgen Uldall he developed a structuralist theory of language which he called glossematics, which further developed the semiotic theory of Ferdinand de Saussure. Glossematics as a theory of language is characterized by a high degree of formalism. It is interested in describing the formal and semantic characteristics of language in separation from sociology, psychology or neurobiology, and has a high degree of logical rigour. Hjelmslev regarded linguistics – or glossematics – as a formal science. He was a pioneer of formal linguistics. Hjelmslev's theory became widely influential in structural and functional grammar, and in semiotics.

Jean Deslauriers was a Canadian conductor, violinist, and composer. As a conductor he had a long and fruitful partnership with the Canadian Broadcasting Corporation; conducting orchestras for feature films and television and radio programs for more than 40 years. He also worked as a guest conductor with orchestras and opera companies throughout Canada and served on the conducting staff of the Opéra du Québec. The Canadian Encyclopedia describes him as "a conductor with a sober but efficient technique, who was always faithful to the written score [and] equally at ease conducting concerts, opera, and lighter repertoire." His best-known compositions are his Prélude for strings and the song, La Musique des yeux. He is the father of soprano Yolande Deslauriers-Husaruk.

Larry Bruce Jones was an American college football player and coach. He served as the head coach at Florida State University from 1971 to 1973, compiling a record of 15–19. A native of Little Rock, Arkansas, Jones played as a linebacker and center at Louisiana State University (LSU). He also served as an assistant coach as his alma mater, LSU, and at the University of South Carolina, the United States Military Academy, the University of Tennessee, and the University of Kansas. Jones returned to LSU in 1979 as assistant athletic director and served two stints as interim AD. From 1989 to 2012, he was the chief fundraiser for the LSU Alumni Association.

Victor Joseph Auguste D'Hondt was a Belgian lawyer and jurist of civil law at Ghent University. He devised a procedure, the D'Hondt method, which he first described in 1878, for allocating seats to candidates in party-list proportional representation elections. The method has been adopted by a number of countries, including Albania, Argentina, Armenia, Austria, Belgium, Bulgaria, Chile, Colombia, Croatia, Czech Republic, Denmark, Ecuador, Fiji, Finland, Israel, Japan, North Macedonia, the Netherlands, Northern Ireland, Paraguay, Poland, Portugal, Scotland, Slovenia, Serbia, Spain, Switzerland, Turkey, Iceland, Uruguay and Wales. A modified D'Hondt system is used for elections to the London Assembly and the Scottish Parliament.

Ramón Castilla y Marquesado was a Peruvian caudillo who served twice as President of Peru, first in 1845–1851, and then in 1855–1862. He also led a military junta in 1844, and was de facto interim president for a couple of days in April 1863. His earliest prominent appearance in Peruvian history began with his participation in a commanding role of the army of the Libertadores that helped Peru become an independent nation. Later, he led the country when the economy boomed due to the exploitation of guano deposits. Castilla's governments are remembered for having abolished slavery and modernized the state.

Ziaur Rahman was a Bangladeshi military leader and politician who served as the sixth president of Bangladesh from 1977 until his assassination in 1981. One of the leading figures of the country's independence war, Zia broadcast the Bangladeshi declaration of independence in March 1971 from Chittagong. In the aftermath of the Sipahi-Janata revolution in 1975, he consolidated power to lead Bangladesh with pragmatic policies through economic liberalisation and civic nationalism that significantly contributed to the economic recovery of the country. He is often referred to as the Shaheed President in Bangladesh. He also founded the Bangladesh Nationalist Party (BNP).

Leo Szilard was a Hungarian-born American physicist, biologist and inventor who made numerous important discoveries in nuclear physics and the biological sciences. He conceived the nuclear chain reaction in 1933, and patented the idea in 1936. In late 1939 he wrote the Einstein–Szilard letter for Albert Einstein's signature that resulted in the Manhattan Project that built the atomic bomb, and then in 1945 wrote the Szilard petition asking president Harry S. Truman to demonstrate the bomb without dropping it on civilians. According to György Marx, he was one of the Hungarian scientists known as The Martians.

The Wright brothers, Orville Wright and Wilbur Wright, were American aviation pioneers generally credited with inventing, building, and flying the world's first successful airplane. They made the first controlled, sustained flight of an engine-powered, heavier-than-air aircraft with the Wright Flyer on December 17, 1903, four miles (6 km) south of Kitty Hawk, North Carolina, at what is now known as Kill Devil Hills. In 1904 the Wright brothers developed the Wright Flyer II, which made longer-duration flights including the first circle, followed in 1905 by the first truly practical fixed-wing aircraft, the Wright Flyer III.

Sir Peter Paul Rubens was a Flemish artist and diplomat. He is considered the most influential artist of the Flemish Baroque tradition. Rubens's highly charged compositions reference erudite aspects of classical and Christian history. His unique and immensely popular Baroque style emphasised movement, colour, and sensuality, which followed the immediate, dramatic artistic style promoted in the Counter-Reformation. Rubens was a painter producing altarpieces, portraits, landscapes, and history paintings of mythological and allegorical subjects. He was also a prolific designer of cartoons for the Flemish tapestry workshops and of frontispieces for the publishers in Antwerp.

Tōgō Heihachirō was a Japanese naval officer who served as a gensui or admiral of the fleet in the Imperial Japanese Navy and became one of Japan's greatest naval heroes. As Commander-in-Chief of the Combined Fleet during the Russo-Japanese War of 1904–1905, he successfully confined the Russian Pacific naval forces to Port Arthur before winning a decisive victory over a relieving fleet at Tsushima in May 1905. Western journalists called Tōgō "the Nelson of the East". He remains deeply revered as a national hero in Japan, with shrines and streets named in his honour.

Jeanne de Ponthieu, dame d'Épernon, Countess of Vendôme and of Castres, better known in English as Joan of Ponthieu, was a French vassal; she was Dame d'Épernon suo jure by inheritance from 1343 to 1376. She was the youngest daughter of Jean II de Ponthieu, Count of Aumale. She was Countess of Vendôme and of Castres as the wife of Jean VI de Vendôme, Count of Vendôme and of Castres. She acted as regent for her infant granddaughter Jeanne, suo jure Countess of Vendôme from 1371 until the child's premature death in 1372.

John E. Thrasher was an American politician and state legislator in Florida. He was a businessman, lawyer, and lobbyist who served as the 15th president of Florida State University. He was approved by the Florida Board of Governors on November 6, 2014, and took office on November 10, 2014. On September 11, 2020, Thrasher and the university board of trustees announced his retirement in a joint statement. In May 2021, Richard McCullough was chosen by Florida State University's board of trustees to succeed Thrasher.

Rafael Leónidas Trujillo Molina, nicknamed "El Jefe", was a Dominican military officer and dictator who ruled the Dominican Republic from August 1930 until his assassination in May 1961. He was the country's 36th and 39th president, from 1930 to 1938 and from 1942 to 1952 respectively. He was also the country's first generalissimo, its de facto most powerful position at the time, from 1930 until his assassination. In that position, Trujillo ruled the country under figurehead presidents.