Sir Rowland Blennerhassett, 1st Baronet Anglo-Irish lawyer and baronet (1741–1821) Parents Frances Yeilding Robert Blennerhassett Children William Blennerhassett Sir Robert Blennerhassett, 2nd Bt. Arthur Blennerhassett Richard Francis Blennerhassett Rowland Blennerhassett Siblings Belinda Blennerhassett Partners Millicent Agnes Yielding