Sir John Blackwood, 2nd Baronet Irish politician (1721–1799) Parents Joyce Leeson Sir Robert Blackwood, 1st Bt. Children James Blackwood, 2nd Baron Dufferin and Claneboye Sophia Blackwood Margaret Catherine Blackwood Hans Blackwood, 3rd Baron Dufferin and Claneboye Leeson Blackwood John Blackwood Robert Blackwood Henry Blackwood Anne Blackwood Price Blackwood Dorcas Blackwood Partners Dorcas Blackwood, 1st Baroness Dufferin and Claneboye