Clan Macdonald of Clanranald, also known as
Clan Ranald is a
Scottish clan and a branch of
Clan Donald, one of the largest Scottish clans. The founder of the Macdonalds of Clanranald is Reginald, 4th great-grandson of
Somerled. The Macdonalds of Clanranald descend from Reginald's elder son Allan and the
MacDonells of Glengarry descend from his younger son Donald. The
clan chief of the Macdonalds of Clanranald is traditionally designated as
The Captain of Clanranald and today both the chief and clan are recognised by the
Lord Lyon King of Arms, the
heraldic judge in Scotland.