James FitzRoy Henry William Pole-Tylney-Long-Wellesley b. 11 August 1815, d. 30 October 1851 (1815–1851) Parents Catherine Tylney-Long William Pole-Tylney-Long-Wellesley, 4th Earl of Mornington Children Siblings William Pole-Tylney-Long-Wellesley, 5th Earl of Mornington Lady Victoria Catherine Mary Pole-Tylney-Long-Wellesley