Ranulph married Constance of Brittany Penthievre in 1188 in Bretagne, Brittany, France. Constance (daughter of Conan II 'Le Petit' 'The Small' Count de Penthievre Duke Bretagne and Margaret Marjorie Huntingdon Princess Scotland) was born on 12 Jun 1166 in Rennes, Ille-et-Vilaine, Bretagne, France; died on 5 Sep 1201 in Nantes, Loire-Atlantique, Pays de la Loire, France. [Group Sheet] [Family Chart]