| Name | Duncan "Mormaer of Athol" "Lord of the Isles and of Atholl" "Abbot of Dunkeld" |
| Birth | 0949, Atholl, Perthshire, SCOTLAND |
| Death | abt 0990 Age: 41 |
| Father | Duncan "Earl of Strathclyde" "Lay Abbot of Dunkeld" (~0925-0965) |
| 1 | UNNAMED |
| Children | Crinan "Grimus" (0978-1045) |
| UNNAMED |
Duncan was known as "Duncan of the Isles."
aka: Than of Dule of Strathclyde Duncan
Commanded the Scottish left wing at the battle of Luncarty (990) where the Danes were so crushingly defeated that their raids on that part of what subsequently became Perthshire, hitherto periodic and devastating, were terminated. (Burke's Peerage)