He was also contracted to serve from September in Berwick and Perthshire under the command of Sir John de Segrave.
In 1314 Abernethy was forfeited and attached to the earldom of Angus, so Alexander went to England and died by the end of 1315.
He also held the positions of the Sheriffdoms of Kincardine, Forfar and Perth and joint warden between the Forth and Orkney.
She resided in England as late as 30 Jan 1324/5, when a record in the Calendar of Patent Rolls dated at Langley stated, ' 860.
The K. signifies that he has granted leave to Margaret de Abernethy to visit Scotland, to treat with her friends there as to recovery of her hereditary lands.