William Douglas, 1st Earl of Douglas

William Douglas, 1st Earl of Douglas (c. 1323–1384), son of Sir Archibald Douglas, killed at Halidon Hill, and nephew of Bruce's lieutenant Sir James the Good, was raised in France as ward of the Knight of Liddesdale. He returned in 1348, drove the English from Douglasdale, then killed Liddesdale in a 1353 feud and in 1354 gained a charter of all the Douglas lands.

He married Margaret of Mar in 1357 and was created first Earl of Douglas in 1358; his son James became 2nd Earl. He died in 1384.