Louisa Petty, Countess of Shelburne second wife of William Petty, 2nd Earl of Shelburne (1755-1789) (1755–1789) Parents Lady Evelyn Leveson-Gower John FitzPatrick Children Lady Louisa Fitzmaurice Henry Petty-Fitzmaurice, 3rd Marquess of Lansdowne Siblings Richard FitzPatrick John FitzPatrick, 2nd Earl of Upper Ossory Mary Fox, 2nd Baroness Holland Henrietta Vernon Caroline Maria Vernon Partners William Petty, 2nd Earl of Shelburne
