HAY, William of Locherworth and Yester, Sheriff of Peebles, Sir ¹

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William married Alicia HAY, daughter of Sir Thomas HAY 7th of Erroll, Constable of Scotland and Elizabeth STEWART.¹ (Alicia HAY was born about 1375.)

  Marriage Notes:

"Douglas says that he married, first, Johanna Gifford, the heiress of Yester, by whom he had three sons and three daughters, and secondly, Alicia, daughter of Sir Thomas Hay of Erroll, by whom he had another son and daughter. Joanna Gifford, as already stated, was in reality his mother, and in lieu of any evidence to the contrary it may reasonably be assumed that Alicia Hay was his only wife and the mother of all his children, as she most certainly was of the two sons David and Edmund. This Alicia Hay survived him about thirty years, and considerably augmented the revenues of the collegiate church of Yester. By a charter dated at Yester 23 February 1447-48 she settled on the church the lands of Blanes within the constabulary of Haddington, together with various rents from tenements in the town of Haddington, amounting to £4, 2s. 6d. for the support of a chaplain, also sundry lands with the houses and buildings erected thereon, which the Lord David de Hay, of Yester, Knight, son and heir of the said Alicia, had conceded to her for a residence for the chaplain and his successors. Among the witnesses to this charter, which was confirmed by the King 23 February 1449-50, are Edmund de Haya of Linplum, son of the said Alicia, Thomas de Haya, and Archibald de Haya. They had issue"

from Scots Peerage (vol 8) ¹

William next married Christian WARDLAW, daughter of Sir Henry WARDLAW of Wilton and Mary STEWART. (Christian WARDLAW was born about 1350.)

  Marriage Notes:

"Concerning the family life of Willielmo de Muirhead, Alexander Nisbet, albeit in error, tells us that:

'This knight of Muirhead, of the houƒe of Lachop, married dame Jean Hay, daughter of Sir William Hay of Lochernard, anceƒtor of the lords of Yeƒter, and of the earls and marquƒses of Tweddale: by whom he had Willielmus de Muirhead, Dominus de Lachop, in 1445.' "

from Mother Bedford website

Note:
1
The date of 1445 is probably the 'error' referred to by the author

2
Scots Peerage, volume 8, includes Christian Wardlaw as a possible first wife of Thomas Hay, but there is clearly considerable doubt there, and as first wife, her dates and thodse of her daughter would not allow the marriage with Muirhead noted above.
However, the Nisbet quote above names her as a wife of William, not Thomas, Hay.
As the first wife wife of second William the dates fit Christian being a sister of the Bishop of Glasgow, Walter Wardlaw who was at the University of Paris by 1349.
This does place two daughters named "Jean" in the same extended family, but there are many variations of this name that might have differentiated them.

Genealogie of the Family of Haye of Tweeddale, compiled in 1835 by Richard Augustin Hay, states firmly that it was Thomas who was her father, but this author states that the succession of Hay of Locherworth was Gilbert, Thomas, Thomas and then two Williams, and that Christian Wardlaw was the mother of the second Thomas, but his scenario would place Christian in a dating incompatible with other factors.

As with other members of this and associated families, uncertainty dominates.
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