 John of Islay, Lord of the Isles

John of Islay (or John MacDonald) ( or ) (died 1386) was the Lord of the Isles (1336–1386) and chief of Clan Donald.In 1336, he styled himself "Dominus Insularum", "Lord of the Isles"; because this is the first ever recorded instance of the title in use, modern historians count John as the first of the later medieval Lords of the Isles, although this rather broad Latin style corresponds roughly with the older Gaelic title "Rí Innse Gall" ("King of the Isles"), in use since the Viking Age, and for instance, the even more similar Latin title "dominus de Inchegal" ("Lord of the Hebrides"), applied to Raghnall Mac Somhairle in the mid-12th century.