John of Islay

John of Islay (Eoin mac Aonghais; died 1386), son of Aonghus Óg Mac Domhnaill, became Clan Donald chief and Lord of the Isles from 1336. Edward Balliol granted him lands, and David II confirmed his holdings in 1343. Through his wife Amie mac Ruari he inherited Garmoran, gaining most of the Hebrides.

He later married Margaret Stewart, the future Robert II's daughter, and divorced Amie, then submitted to David II in 1369 and died in 1386.