Sir Arthur Charles Francis Bernard Blennerhassett, 5th Bt. (1871-1915) (1871–1915) Parents Sir Rowland Blennerhassett, 4th Baronet Charlotte, Lady Blennerhassett Children Sir Marmaduke Charles Henry Joseph Casimir Blennerhassett, 6th Bt. Siblings William Lewis Blennerhassett Paul Charles William Marmaduke Rowland Blennerhassett Marie Galway Partners Mary Frances von Aretin