 He is known to have completed a ""manor house"" with ""a fine timber-framed hall"" (the castle) which was accompanied by the private St Mary's Chapel which he constructed ""a quarter of a mile"" (0.4 kilometres) south, in Rattray village itself.In the mid-1270s it is reported that "a castle-strengthening programme at"... "Rattray" took place.Comyn's castle survived until the Harrying of Buchan in the summer of 1308, when all the Comyn lands were bloodily burnt to the ground after John Comyn, Earl of Buchan was beaten at the Battle of Barra.