Sir Rowland Blennerhassett, 4th Baronet Anglo-Irish baronet, politician (1839–1909) Parents Sarah Mahony Sir Arthur Blennerhassett, 3rd Bt. Children Marie Galway William Lewis Blennerhassett Paul Charles William Marmaduke Rowland Blennerhassett Sir Arthur Charles Francis Bernard Blennerhassett, 5th Bt. Partners Charlotte, Lady Blennerhassett