Berthold III (c. 1110/1122 – 14 December 1188), a member of the Bavarian House of Andechs , was Margrave of Istria (as Berthold I) from 1173 until his death.
He was the son of Count Berthold II of Andechs , ruler over Dießen in Bavaria , Plassenburg in Franconia and Stein in Carniola , and his first wife Sophia, a daughter of Margrave Poppo II of Istria . His brother Otto became Prince-Bishop of Brixen in 1165. A loyal supporter of the Hohenstaufen emperor Frederick Barbarossa , Count Berthold rose to one of the most important nobles, holding extended estates in Bavaria as well as in Franconia and in Carniola south of the Eastern Alps .
In 1173, he was appointed Margrave of Istria, succeeding Engelbert III , the last Margrave from the House of Sponheim and cousin of his mother Sophia. When in 1180 Emperor Frederick deposed the Welf duke Henry the Lion , he vested Berthold's son, Count Berthold IV , with the title of a Duke of Merania , thereby elevating the House of Andechs to princely status.
Marriage and issue
Berthold III was married twice. In 1152 he married Hedwig of Wittelsbach , daughter of the Bavarian Count palatine Otto IV of Scheyern and Heilika of Pettendorf-Lengenfeld -Hopfenohe.
They had:
Berthold IV, Duke of Merania (1153–1204)
Sophia (died 1218). Married Poppo VI, Count of Henneberg (died c. 1190)
Kunigunde (died after 1207), married Eberhard, Count of Eberstein
Matilda , Countess of Pisino (died 1245), married Berthold, Margrave of Vohburg. In c. 1190 married secondly Engelbert III, Count of Gorizia (died 1217/1220).
unidentified daughter, married Ampud II , ispán of Szolnok County (fl. 1199)
His second wife was Luitgard of Denmark, daughter of king Sweyn III of Denmark and Adela of Meissen . They had:
Poppo, Bishop of Bamberg (died December 2, 1245)
Berta, Abbess in Gerbstadt (died 1190)
References
Sources
Arnold, Benjamin (2003). Princes and Territories in Medieval Germany . Cambridge University Press. ISBN 9780521521482 .
Lyon, Jonathan R. (2013). Princely Brothers and Sisters: The Sibling Bond in German Politics, 1100–1250 . Cornell University Press.
Newman, Martha G. (2020). Cistercian Stories for Nuns and Monks . University of Pennsylvania Press.
Wertner, Mór (1895). "Ompud nádor és utódai [Palatine Ampud and his Descendants ]". Turul (in Hungarian). 13 (2): 91–93. ISSN 1216-7258 .
Berthold I of Istria
Born: c. 1110/1122 Died: 4 December 1188
Preceded by
Margrave of Istria 1173–1188
Succeeded by
International National People