sentences:  The Dowager Countess of Tyrone was a descendant of Nicholas's daughter Ellen, who married David Poer or Power, known as "Davey Rothe", of Conoughmore, ancestor of the Barons Power.Since Nicholas le Poer also had sons who left children, the Countess was not heiress of Nicholas.Nevertheless, on 9 November 1767 the Irish House of Lords resolved that she had proved her case; the Crown confirmed this on 19 December 1767 and allowed her "all the rights and privileges belonging to the said Barony", as they had been held by "her grandfather Richard, who sat and voted as Baron La Poer".