Thomas Preston, 1st Viscount Tara Irish noble and general (1585–1655) Parents Catherine FitzWilliam Christopher Preston, 4th Viscount Gormanston Children Thomas Preston Anthony Preston, 2nd Viscount Taragh John George Preston Sir James Preston Siblings Catherine Preston William Preston Mary Preston unknown son Preston Jenico Preston, 5th Viscount Gormanston unknown son Preston Jane Preston Partners Marguerite de Namur unknown van der Eycken