Avice Blennerhassett Peerage person ID=279379 (1710–1781) Parents Jane Darby Thomas Blennerhassett Children Martha Collis Mary Blennerhassett Collis Siblings Arthur Blennerhassett Chiswell Blennerhassett Elizabeth Blennerhassett John Blennerhassett Jane Blennerhassett Alice Blennerhassett Partners Thomas Collis