Thomas Westbrook Waldron, a captain in the 1745 expedition against the Fortress of Louisbourg, afterwards a commissioner at Albany, New York, a Royal councillor in 1782 and later described as a Colonel, abandoned a close friendship with the last royal governor of colonial New Hampshire, John Wentworth (governor), for the role of a cautious patriot of the new United States.
Mogens Gøye (surname also spelled Gøje or Gjøe) (ca. 1470 – 6 April 1544) was a Danish statesman and Steward of the Realm, whose enormous wealth earned him the derogatory nickname "the King of Northern Jutland".
 Gøye was the Royal councillor of Danish Kings John I, the feuding Christian II and Frederick I, and Christian III.
 He was a key supporter of the Reformation in Denmark-Norway and Holstein.
 Often lauded by elder Danish historians as a knightly, social liberal upper-class idealist, Gøye is today viewed as a realist statesman understanding the need of a government and a moderate political attitude of the nobility.
Ramon d'Abella (fl.
 1389–1401) was a Catalan military leader and royal councillor under John I and Martin of the Crown of Aragon.
Joseph Ritter von Spaun (after 1859 Joseph Freiherr von Spaun) (November 11, 1788November 25, 1865) was an Austrian nobleman, an Imperial and Royal Councillor, lottery director, and honorary citizen of Vienna and Cieszyn.
 He is best known for his friendship with the composer Franz Schubert.
Robert Bloet (sometimes Robert Bloett; died 1123) was Bishop of Lincoln 1093-1123 and Chancellor of England.
 Born into a noble Norman family, he became a royal clerk under King William I.
 Under William I's son and successor King William II, Bloet was first named chancellor then appointed to the See of Lincoln.
 Continuing to serve the king while bishop, Bloet remained a close royal councillor to William II's successor, King Henry I.
 He did much to embellish Lincoln Cathedral, and gave generously to his cathedral and other religious houses.
 He educated a number of noblemen, including illegitimate children of Henry I.
 He also was the patron of the medieval chronicler Henry of Huntingdon, and was an early patron of Gilbert of Sempringham, the founder of the Gilbertine monastic order.
Eric Bielke (died 1511), also known as "Eerikki Tuurenpoika" and "Eric Tureson", royal councillor of Sweden, knighted, feudal fiefholder or margrave of Vyborg Castle.
Georg Leib (9 March 1846 in Wallerstein – 1910 in Munich) was the Royal Councillor of Commerce and ran a very successful real-estate company in Munich.
Baron Farkas Esterházy de Galántha (1614 – 2 September 1670) was a Hungarian noble from the House of Esterházy, son of royal councillor Baron Gábor Esterházy and his first wife, Anna Ujfalussy de Divékujfalu.
 Farkas served as Chief Justice (Latin: "personalis" , Hungarian: "személynök" ) of Hungary between 1 June 1667 and 2 September 1670.
Jeanette Abadie (or l'Abadie) (born c. 1593) was a young woman of the village of Ciboure in Gascony, France, who was supposedly lured into witchcraft and was one of the principal witnesses concerning the supposed practices of the witches' Sabbath.
 Her account of the Sabbath was contained in the narrative of Pierre de Lancre, a royal councillor of Bordeaux, who made an exhaustive study of witchcraft after being appointed in 1609 to a commission to try people accused of it, apparently including the then sixteen-year-old Jeanette.
Frederick I (7 October 1471 – 10 April 1533) was the King of Denmark and Norway.
 His name is also spelled "Friedrich" in German, "Frederik" in Danish and Norwegian and "Fredrik" in Swedish.
 He was the penultimate Roman Catholic monarch to reign over Denmark, when subsequent monarchs embraced Lutheranism after the Protestant Reformation.
 As King of Norway, Frederick is most remarkable in never having visited the country and was never being crowned King of Norway.
 Therefore he was styled "King of Denmark, the Vends and the Goths, elected King of Norway".

Question: What is the birthdate of this King of Denmark and Norway, of whom Mogens Gaye was the Royal councillor?
Answer: 7 October 1471