Circary at the Time: Polonia
Years of Activity: n/a
Map: Click Here (Source: © MapQuest http://www.mapquest.com)
Monasticon Praemonstratense (I, 353)
Approximate modern location: Poland
Elm-Number [See below]: None.*
Other Comments: A reference to Plock.
* This listing (and the numbers, with a few adjustments after 1995) is based on the map contained in Kaspar Elm's Norbert von Xanten: Adliger, Ordensstifter, Kirchenfürst, Wienand Verlag, Köln, 1984, page 328-329.