Their children were; Sophia of Gandersheim, Abbess born 978 Adelaide of Quedlinburg, Abbess born 977 Matilda of Saxony , Princess born 978 Otto III of Saxony, emperor of the Holy Roman Empire, born 980
When Otto II died in 983 , Theophanu took on the reign as Empress for her son Otto III. She died in 991 and is burried in Cologne. Otto III was still a child and the grandmother Adelaide of Italy took over the reign until Otto III became old enough to reign on his own.