SOURCES: LDS FHL Ancestral File # (familysearch.org)
AWTP:
"Williams/Rose Legacies" Jane Williams Flank jwflank@@hotmail.com (who has generously provided the following research notes at AWTP):
"Sir Thomas de Haya, of Locherworth, son and heir of the last. As 'fils et heir Willialme del Hoy, seigneur de Lochiworth' he was one of the hostages for the liberation of David II specified in the Treaty of 13 July 1354, and under the designation of 'Thomas fiz and heir William de la Hay de Lochorward' was one of those hostages when that Treaty was concluded 3 October 1357, being given to the custody of Henry Strother, Sheriff of Northampton. He is mentioned as 'Thomas de Haye' as being in the custody of the Sheriff of Northampton 20 May 1362, and 20 June 1363, and would seem still to have been in custody 16 May 1369, when he got a safe-conduct from Edward III to go to Rome. He was back in Scotland before 1373, when he is mentioned as Sheriff of Peebles. He is the first of the name who appears as Sheriff of Peebles, an office which bacme hereditary to his family, and was enjoyed by them for three centuries till the second Earl of Tweeddale sold it, together with his whole estates in Tweeddale to william, Duke of Queensberry in 1686. Thomas de la Haya had a share of the 40,000 francs which John of Vienne, Admiral of France, brought with him in 1385, as a present from the French King to the principal Scottish nobles, 4000 livre3s Tournois being allotted as his share 26 November. At Dundee on 29 August 1392, Thomas de Haya, Lord of Lochorwart, granted a charter of the lands of Glasswell and Torburne in the barony of Kyrimure, co Forfar, to his cousin Walter de Moravia of Drumsargart. This charter was confirmed by William (of Douglas), Earl of Angus, 8 March 1422 , and by one under the Great Seal about 1488. He appears to have died shortly after 1392, and certainly before 1 December 1399, when his wife was living, a widow. Douglas says that he married Christian, sister of Cardinal Watler Wardlaw, Bishop of Glasgow, but if so, she must have been his first wife, and it is more probable that she was the wife of a son of his, as suggested below. He certainly married Joanna, eldest of four daughters and coheirs of Hugh Gifford of Yester, who, 1 December 1399, as 'Joanna Hay, Lady Yester, spouse of the deceased Sir Thomas Hay, of Louchquerwart,' confirmed to John Maitland the lands of Lethington originally granted to his grandfather Sir Robert Maitland by Hugh Gifford of Yester. She was still alive in January 1400-1. With her Sir Thomas acquired a fourth part of the lands and barony of Yester, Morham, and Duncanlaw, and the lands of Giffordsgate in Haddington, and henceforth Yester became the principal seat of the family, and finally their territorial designation, and in right of their descent from her they took and quartered the arms of Gifford. [The Scots Peerage VIII:421-423]"