Task: Question Generation
Input (English): Context : William Bouverie, 1st Earl of Radnor FRS (26 February 1725 -- 28 January 1776) was a British peer, styled Hon. William Bouverie from 1747 until 1761. 
Answer : 28 January 1776
Output (English): The date of death for William Bouverie, 1st Earl of Radnor is what?