Sometime after 3 June 1406, Elizabeth Mortimer was married to her second husband, Thomas de Camoys, 1st Baron Camoys. Although Camoys was in his mid-sixties, she may have had a son by him, Sir Roger Camoys. Like her first husband, Camoys was a renowned soldier who commanded the left wing of the English army at the Battle of Agincourt on 25 October 1415.