Earl of Erroll

The Earls of Erroll also hold the hereditary office of Lord High Constable of Scotland.

The Earls of Erroll hold the hereditary title of Chief of Clan Hay.

[4] Gilbert de la Hay (died April 1333), ancestor of the Earls of Erroll, was the older brother of William de la Hay, ancestor of the Earls of Kinnoull.

In 1251, William received a charter of two carucates of land from his brother, which was confirmed by King Alexander III.

It was decided in 1748 in the case of the earldom of Stair that this power of nomination could not be validly exercised after the Union.

The House of Lords, after a full inquiry, decided in favour of the 16th Earl of Erroll's right to the title.

Coat of arms of Hay, Earls of Erroll, The Scots Peerage
Slains Pursuivant Peter Drummond-Murray of Mastrick , the private officer of arms of the Earl of Erroll, who displays the arms of Hay on his tabard