Beatrice Sinclair ¹

Beatrice married James Douglas 7th Earl of Douglas and 1st Earl of Avondale, son of "The Black" Sir Archibald Douglas "The Grim", 3rd Earl of Douglas, Earl of Wigtown, Lord of Galloway, Lord Warden of the Marches and Lady Johanna Moravia of Bothwell, on 7 Mar in Douglas, Lanarkshire, Scotland. (James Douglas 7th Earl of Douglas and 1st Earl of Avondale was born in 1371 in Hermiston, Roxburghshire, Scotland and died on 24 Mar 1442 in Balvany, Banff, Scotland.)