Matilda of Angus, also known as Maud, was the daughter of Maol Choluim, Earl or Mormaer of Angus and, as his heiress, was countess of the province in her own right.
She married John Comyn, but he died in France in 1242. They do not appear to have had issue.
A husband was needed to control the dispersed earldom; she then married Gilbert de Umfraville, a Norman, who was feudal Baron of Prudhoe in Northumberland. He died shortly before 13 March 1245, but not before Matilda had borne him a son named Gilbert to succeed to the earldom in his infancy:
Matilda married again before 22 December 1247, Richard de Dover (a grandson of King John of England), the feudal baron of Chilham, Kent, the son of Richard Fitz Roy. Matilda disappears from records after producing two children: