Background: Glengarry lies in Lochaber, part of the ancient kingdom or province of Moray once ruled by the Picts. Ranald, a son of the Lord of the Isles, had five sons, including Alan, the progenitor of Clanranald, and Donald. Donald married firstly Laleve, daughter of Maciver, by whom he had a son, John. He took as his second wife a daughter of Fraser of Lovat, and had two further sons, Alexander and Angus. John died without heirs and he was succeeded by his half-brother, Alexander, considered by some historians to be the first true chief of Glengarry, but usually counted as the fourth.
Variations: Alexander, Sanderson. Clan MacDonnell of Keppoch: MacGillivantic, MacGilp, Macglasrich, MacKillop, MacPhilip, Philipson, Ronald, Ronaldson, MacDonnell of Glengarry