High Steward monarchs of the House of Stewart
She was the daughter of Domhnall I, Earl of March and Helen (or Ellen) of Wales (1246–1295), the illegitimate daughter of Llywelyn ab Iorwerth ("the Great") Prince of Wales. She had previously been the wife of Maol Choluim II, Earl of Fife.
She died before Robert was crowned King of Scots, and never became the Queen. Her father was one of the seven guardians of Scotland who believed Robert Bruce to be the rightful King of Scotland. March was the first to sign over the estates of his family to the Bruce.
Isabella was married to Robert at the age of 18 and legend has it that they were much in love.
She had a healthy pregnancy but she died soon after giving birth to a daughter, Marjorie Bruce in 1296. She is buried at Paisley Abbey, Renfrewshire.
From him descend the monarchs of the House of Stewart and the later royal families of the United Kingdom.
