sentences:  Maria is probably a confusion for "Irene", the baptismal name of Gertrude's sister Bertha of Sulzbach, wife of the Roman Emperor Manuel I Komnenos.Both were granddaughters of Otto and children of Count Berengar and Adelheid.At the time of Gertrude's birth, in 1111, Count Berengar II was among the nobles attending the coronation of the last Salian emperor Henry V. He is mentioned among the sureties of documents related to the coronation.