William Segar

Sir William Segar (c. 1554–1633) was a portrait painter and officer of arms to the court of Elizabeth I of England; he became Garter King of Arms under James I.

Like other artists of the Tudor court, Segar was active in more than one medium, painting portraits of luminaries of the court in addition to his duties in the College of Arms. He painted Elizabeth's favourite the Earl of Essex in his "Sable sad" (black) armour for the Accession Day tilt of 1590. The famous "Ermine Portrait" of Elizabeth is sometimes attributed to Segar.

William Segar may have been the son of one Nicholas Segar or of Francis Nycholson, alias Seager, who became a freeman of the Stationers' Company in 1557. Once thought to be of Dutch origin, Segar is now believed to have been born in England of an English mother. Segar stated his age as "fifty or thereabouts" in a document dated 13 September 1604. By 1584 William had married Helen Somers, and had three sons and three daughters. By 1596 Segar was married to Maria Browne and had four sons, including Thomas Segar who later became Bluemantle Pursuivant, and three daughters. In December 1616 one of Segar's rivals, York Herald Ralph Brooke, tricked him into confirming foreign royal arms to Gregory Brandon, a common hangman of London who was masquerading as a gentleman. Brooke then reported him to James I, who imprisoned both Brooke and Segar in Marshalsea. They were released a few days later and the Lord Chamberlain hoped that the experience would make Brooke more honest and Segar more wise.

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