 A third monument to Mary Montagu (1711–1775), daughter of John and Mary, is by Pieter Mathias van Gelder (1742–1824).These first three monuments are of very high quality, rivalling the Roubilliacs in Westminster Abbey.The fourth monument, to Elizabeth Scott, Duchess of Buccleuch (1743–1827), daughter of Mary, is by Thomas Campbell (1790–1858) and, though very fine, is of significantly lesser quality than the other three.