Susan Blennerhassett (died 1819) (d. 1819) Parents Conway Blennerhassett Elizabeth Lacy Children Thomas de Courcy, 27th Baron Kingsale Michael de Courcy Martha de Courcy Gerald de Courcy Elizabeth de Courcy Anne Geraldine de Courcy Mary de Courcy John de Courcy Siblings Elizabeth Blennerhassett Margaret Blennerhassett Harman Blennerhassett Anne Blennerhassett John Blennerhassett Catherine Blennerhassett Thomas Blennerhassett Avice Blennerhassett Partners John de Courcy, 26th Baron Kingsale