Maol Íosa IV of Strathearn, who ruled Strathearn

Strathearn

Strathearn or Strath Earn is the strath of the River Earn, in Scotland. It extends from Loch Earn in Perth and Kinross to the River Tay....

 (1317–1329), is the seventh known Mormaer

Mormaer

The title of Mormaer designates a regional or provincial ruler in the medieval Kingdom of the Scots. In theory, although not always in practice, a Mormaer was second only to the King of Scots, and the senior of a toisech.-Origin:...

 of Strathearn, but of course this is simply a source problem and in no way means that he was the seventh in actuality.

Maol Íosa was an ardent supporter of the cause of Robert de Brus

Robert I of Scotland

Robert I , popularly known as Robert the Bruce , was King of Scots from March 25, 1306, until his death in 1329.His paternal ancestors were of Scoto-Norman heritage , and...

 during the Scottish Wars of Independence, even fighting against his father Maol Íosa III

Maol Íosa III, Earl of Strathearn

Maol Íosa III of Strathearn, who ruled Strathearn 1271 to 1317, is the sixth known Mormaer of Strathearn; but this is a source problem and in no way means that he was the sixth in reality....

, whom he captured in 1313. Maol Íosa IV's with King Robert probably saved the life of old Maol Íosa.

He married a woman called Johanna, by whom he sired Mormaer Maol Íosa V

Maol Íosa V, Earl of Strathearn

Maol Íosa V of Strathearn was the last of the native Gaelic family of Strathearn mormaers. He ruled Strathearn as mormaer/earl between 1330 and 1334, and was Earl of Orkney between 1331 and 1350....

, the last traditional Gaelic

Gaels

The Gaels or Goidels are speakers of one of the Goidelic Celtic languages: Irish, Scottish Gaelic, and Manx. Goidelic speech originated in Ireland and subsequently spread to western and northern Scotland and the Isle of Man....

Mormaer of Strathearn.