Together with the “Schwarzbuch” (KU 4b), this urbarium offers a
comprehensive overview of the rights and possessions of the
Cistercian Abbey, which reached its economic peak in the second
half of the 15th century. Copies of documents and compilations of
rights and dues, organized according to geographic criteria,
demonstrate the size of the abbey’s possessions. The
“Weissbuch” covers the core of St. Urban’s manorial power
around Pfaffnau and Roggliswil and in the Bernese Upper Aargau
region. After the dissolution of the monastery, this volume, along
with the monastery archives, became part of the state archives in
1848.
