IV married of Torino Adelaide about 1021 in of Torino, Germany, Italy. Adelaide (daughter of Olderico Manfredo di Torino and of Este Bertha Ivrea) was born in 1020 in Turin, Italy; died on 19 Dec 1091 in Canischio, Canavese, Italy; was buried in Cathedral of San Giovanni, Turin, Italy. [Group Sheet] [Family Chart]