 Complete the following phrase:  As Col. William did not marry until the age of 52, he died without issue. The estate passed to his brother David Conyngham who also died childless. As a result, the estate passed to the son of their sister Ann who had married Clotworthy Lenox of Derry, grandson of James Lenox, Alderman of Derry Mayor of Derry 1693 and 1697, remembered as one of the leaders of the 