Pitt first offered him the Lord Lieutenancy of Ireland , which he politely refused .
With the ascendancy of William Pitt the Younger to power in December 1783 , doors to new positions were opened to the earl .
William Pitt the Younger first offered him the Lord Lieutenancy of Ireland , which he politely refused .
With the ascendancy of William Pitt the Younger to power in December 1783 , doors to new positions were opened to the earl .