Sarah Maria Theresa McKean (1777-1841)

Sarah McKean was the daughter of US Founding Father Thomas McKean (1734-1817), one of the Signers of the US Declaration of Independence. Sarah married Spanish diplomat Carlos Martínez de Irujo, 1st Marquis of Casa Irujo; their son, Carlos Martínez de Irujo y McKean, would later become Prime Minister of Spain.