Poppo II, Margrave of Carniola

Poppo II (died 1098), Count of Weimar-Orlamünde, was margrave of Carniola from 1070 and of Istria from 1096 to his death.

Poppo was the son of Margrave Ulric I of Carniola, whom he succeeded upon his death in 1070. His mother Sophia was a daughter of King Béla I of Hungary. He was thus of royal blood.

He married Richgard, daughter of Count Engelbert of Sponheim, 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 (1110/1122–1188)
• 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.