 In <unk> he took part in Edward 's Scottish campaign , though it is unclear whether he was present at the great English victory at the Battle of <unk> Hill . After further service in the north , he was appointed the King 's lieutenant in Scotland in 1336 . The next year he was one of the six men Edward III promoted to the higher levels of the peerage . One of his father 's lesser titles , that of Earl of Derby , was bestowed upon Grosmont . 
