William Wellesley-Pole, 3rd Earl of Mornington
William Wellesley-Pole , 3rd Earl of Mornington , ( 20 May 1763 – 22 February 1845 ) , known as Lord Maryborough between 1821 and 1842 , was an Anglo-Irish politician and an elder brother of the Duke of Wellington . 
<triplet> William Wellesley-Pole, 3rd Earl of Mornington <subj> 20 May 1763 <obj> date of birth <subj> 22 February 1845 <obj> date of death <subj> Duke of Wellington <obj> sibling <triplet> Duke of Wellington <subj> William Wellesley-Pole, 3rd Earl of Mornington <obj> sibling