Magnus m. Latin magnus 'large, great, powerful'.
The name of a 2nd C saint, a 3rd C saint, a 6th C saint, a 7th C French saint, a 7th or 8th C German saint, an three 11th C kings of Norway, an 11th C king of Denmark, two 12th C kings of Norway, two 12th C kings of Sweden, a 13th C king of Norway, a 13th C king of Sweden, a 14th C king of Norway and Sweden, and a 16th C king of Livonia.