Thomas St Lawrence Irish bishop (1755-1831) (1755–1831) Parents Isabella King Thomas St Lawrence, 1st Earl of Howth Children Isabella St. Lawrence Thomas St. Lawrence Robert Kingsborough St. Lawrence Letitia St. Lawrence Edward St. Lawrence Emma St. Lawrence Frances Elizabeth St. Lawrence Siblings Lady Elizabeth St. Lawrence Lady Isabella St. Lawrence Henry St. Lawrence William St. Lawrence, 2nd Earl of Howth Lady Frances St. Lawrence Partners Frances Coghlan