Piotr I (bishop of Wrocław) explained

Piotr I (died 29 January 1111) was a Roman Catholic priest and bishop of Wrocław.^{[1] [2]}

In 1074 after death of bishop Jan he became bishop of Wrocław. According to trustworthy tradition in 1110 he consecrated a church in Ślęża.

Notes and References

1. Book: Szczur, Stanisław. Stanisław Szczur

   . Stanisław Szczur. . 26 . 1981. Polska Akademia Nauk & Polska Akademia Umiejętności . Piotr I, biskup wrocławski. 354–355.

2. http://www.pwt.wroc.pl/kongres/en/miejsce/bishops.htm Bishops of Wroclaw in the history