Adalbero (died about 1082/86), a member of the

Otakar Otakar is a masculine Czech given name of Germanic origin (cf. Audovacar). Notable people with the name include: *Otakar Batlička (1895–1942), Czech adventurer, journalist, ham radio operator, member of Czech Nazi resistance group in World War ...

dynasty, was Margrave of Styria from 1075 until 1082.

Biography

He was the eldest son of Margrave

Ottokar I of Styria Ottokar I, also Otakar (died 29 March 1075) was count in the Bavarian Chiemgau and Margrave of Styria from 1056 until his death. He became progenitor of the dynasty of the Otakars. Biography He was the son of Count Otakar V in the Chiemgau (di ...

and his wife Willibirg of

Eppenstein Eppenstein is a former municipality in the district of Murtal (district), Murtal in the Austrian state of Styria. Since the 2015 Styria municipal structural reform, it is part of the municipality Weißkirchen in Steiermark. Eppenstein lies in the ...

, possibly a daughter of Duke Adalbero of Carinthia. He succeeded as margrave upon the death of his father in 1075. Like his father, Adalbero sided with Emperor Henry IV in the fierce

Investiture Controversy The Investiture Controversy, also called Investiture Contest ( German: ''Investiturstreit''; ), was a conflict between the Church and the state in medieval Europe over the ability to choose and install bishops ( investiture) and abbots of mona ...

, which led to a confrontation with his younger brother Ottokar II, an ally of Pope Gregory VII. In 1082 Adalbero finally was forced to resign in favour of his brother and was killed shortly afterwards. {{Authority control Year of birth unknown Styria, Adalbero of 11th-century people of the Holy Roman Empire

Adalbero Adalbero or Adalberon (french: Adalbéron) is a masculine given name, a variant of Adalbert (given name), Adalbert, derived from the Old High German words ''Ethel (disambiguation), adal'' ("noble") and ''beraht'' ("bright") or '':en:wikt:bero#Old_Hi ...