John I of Nysa, born in Nysa, in the

Silesian Piast The Silesian Piasts were the elder of four lines of the Polish Piast dynasty beginning with Władysław II the Exile (1105–1159), eldest son of Duke Bolesław III of Poland. By Bolesław's testament, Władysław was granted Silesia as his here ...

family, he received a high rank nobile title as Prince-Bishop of Nysa later known as

Bishop of Wrocław Bishops of the (Breslau )Wrocław Bishopric, Prince-Bishopric (1290–1918), and Archdiocese (since 1930; see Roman Catholic Archdiocese of Wrocław for details). Bishops * 1000–? – John (Johannes) * 1051–1062 – Hieronymus * 1063–1072 � ...

was a

.Encyklopedia Wrocławia, Wrocław 2000. Very little is known of him except his office was from 1063 till his death in 1072. The historical records from his time in office are very sparse.

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

had been ravaged by a

pagan Paganism (, later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the ...

uprising that left

diocese of Wroclaw In Ecclesiastical polity, church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop. History In the later organization of the Roman Empire, the increasingly subdivided Roman province, prov ...

, founded a generation earlier, in a precarious condition. He spent most of his bishopric rebuilding the church. It is probable that he was the bishop who consecrated the

cathedral A cathedral is a church (building), church that contains the of a bishop, thus serving as the central church of a diocese, Annual conferences within Methodism, conference, or episcopate. Churches with the function of "cathedral" are usually s ...

built by

Casimir the Restorer Casimir I the Restorer (; 25 July 1016 – 19 March 1058), a member of the Piast dynasty, was the duke of Poland from 1040 until his death. Casimir was the son of Mieszko II Lambert and Richeza of Lotharingia. He is known as the Restorer because ...

. He was succeeded by Piotr I.

References

1072 deaths Year of birth unknown {{Poland-RC-bishop-stub