The son of Sir Robert de Lawedre of The Bass (d. September 1337) by his wife Elizabeth (d. before 1358), he was probably born about 1310 and is described in Rymer's Foedera (vol.iii, p. 1022) as the eldest son of Sir Robert de Lawedre, one of the Scottish Ambassadors in 1323 who had been sent to negotiate peace with England. This Robert fils was attached to the train as a page.