Constantine III of Scotland

Constantine, son of Cuilén (Middle Gaelic: Causantín mac Cuiléin; Modern Gaelic: Còiseam mac Chailein), known in most modern regnal lists as Constantine III (c. 970 – 997), was king of Alba (Scotland) from 995 to 997. He was the son of King Cuilén. John of Fordun calls him, in Latin, Constantinus Calvus, which translates to Constantine the Bald. (Middle Gaelic: Causantín In Maol) Benjamin Hudson notes that insular authors from Ireland and Scotland typically identified rulers by sobriquets, noting for example the similarly named Eugenius Calvus (Owain Foel), an 11th century King of Strathclyde.

Source: Wikipedia — https://en.wikipedia.org/wiki/Constantine_III_of_Scotland