William Earl of Mar, Chamberlain to Alexander III ³

   Another name for William was EHISLACH, Uilleam 5th Earl of Mar.⁴

   User ID: X911.

  General Notes:

"Uilleam was responsible for the construction of Kildrummy Castle.... Uilleam, more than any of his predecessors, participated in Scottish and even British-wide politics, becoming a leading figure in the royal regime of Alexander II, and the minority of Alexander III. By 1244, Uilleam had married into the Comyn house, the fastest rising foreign family in the Scottish kingdom. He married Isabel, the daughter of Count William Comyn of Buchan."

from Wikipedia ¹

William married Elizabeth COMYN, daughter of William COMYN Earl of Buchan, jure uxoris and Margaret Countess of Buchan, by 1244.¹ (Elizabeth COMYN was born about 1215 and died in 1267 ¹.)

William next married Muriel, daughter of Malise 5th Earl of Strathearn and Marjory DE MUSCHAMP, after 1267.² (Muriel was born about 1245 and died in 1291 ².)

  Marriage Notes:

"3. Muriel, elder daughter and coheiress of Marjory Muschamp, the Earl's first wife, born in 1244; married (after 1267), as his second wife, to William, Earl of Mar, who died in 1281. She survived him, dying between May and November 1291, without
issue."

from Scots Peerage ²