Matthew Stewart was a Scottish nobleman and claimant to the Lennox inheritance. Margaret Douglas was the daughter of Archibald Douglas, 6th Earl of Angus, and Margaret Tudor, and was the mother of Henry Stuart, Lord Darnley.

The manor connection is based on the recorded 1544 royal grant, not on genealogy alone.

Research sources:
- Victoria County History, A History of the County of York: North Riding, volume 1 (1914), pp. 68-70, citing the relevant Patent Roll; reproduced and summarized in the Yorkshire Dales National Park archaeological survey. — https://www.yorkshiredales.org.uk/wp-content/uploads/sites/13/2020/02/Mitcham-2019-Community-archaeology-surveys-and-excavation-at-Floshes-Hill.pdf