Their daughter Elizabeth Gray married Laurence Bruce of Cultmalindie, who moved to Shetland and built Muness Castle on Unst.
This contract stated that for English assistance in re-instating his rights over Perth, and the return of his brother, who was a hostage (called a "pledge" in the language of the time) in England; Patrick Gray would further the marriage of Mary, Queen of Scots to Edward VI, and deliver Broughty Castle and the Spey Tower at Perth to the English army.
[6] Gray asked to be compensated for his fishing rights at Broughty; he was duly paid £1000 on 14 November 1547 by Sir Andrew Dudley, an English soldier and brother of the Duke of Northumberland.
[9] In January 1548, an English commander, Thomas Wyndham, placed a garrison of 20 "tall men" in the Steeple at Dundee, with the help and advice of Andrew Dudley and Lord Gray.
[13] During the crisis of the Scottish Reformation, Mary of Guise wrote to Lord Gray on 11 May 1560 to inform him of the defeat of an English assault at the Siege of Leith.
In August 1560, Lord Gray attended the Scottish Reformation Parliament, and signed the commission for the marriage of James Hamilton, 3rd Earl of Arran to Elizabeth I of England, (which had no effect).