Poppo was the son of Margrave
Ulric I of Carniola and
Sophia of Hungary, daughter of King
Béla I of Hungary. He succeeded his father upon his death in 1070. Poppo married Richgard (lt:
Richardis), daughter of Count
Engelbert I, Margrave of Istria, who governed Istria until his death on 1 April 1096. According to the 1170
Historia Welforum chronicle, Poppo and Richgard had two daughters: • Sophia of Istria (d. 1132), married Count
Berthold II of Andechs, mother of Margrave
Berthold I of Istria (1110 or 1122 – 1188) • Hedwig, married firstly Count
Herman I of Winzenburg and secondly Count Adalbert II of
Bogen. Poppo remained a loyal supporter of the
Salian emperor
Henry IV during the
Investiture Controversy. Because of his lack of surviving sons, he was succeeded by his younger brother
Ulric II. ==References==