Louisa Molesworth (1749-1824) (1749–1824) Parents Mary Jenney Ussher Richard Molesworth, 3rd Viscount Molesworth Children Richard Ponsonby George Ponsonby Frederick Ponsonby John Ponsonby, 1st Viscount Ponsonby Mary Grey, Countess Grey William Ponsonby Siblings Henrietta Molesworth Elizabeth Molesworth Charlotte Molesworth Melosina Molesworth Richard Nassau Molesworth, 4th Viscount Molesworth of Swords Mary Molesworth John Phillips Mary Molesworth Letitia Molesworth Amelia Molesworth Partners William Ponsonby, 1st Baron Ponsonby William Wentworth Fitzwilliam, 4th Earl Fitzwilliam