KASSOW, Martyrs of: see CASSOVIA, Diocese of.
KASTL. — An ancient Benedictine abbey in the diocese of Eichstätt, founded in 1102 by Counts Berengar I of K.-Sulzbach and Frederick of K.-Habsberg; confirmed and approved by Paschal II on 12 May 1102 and taken possession of in 1103 by Benedictine monks from Hirschau, coming from the abbey of Petershausen. In turn, it founded the abbey of Reichenbach in 1118.
From 1380 to 1480, K. was the center of a broad reform movement; Abbot Otto Nortweiner (d. 1400) composed the *Consuetudines Castelleneses*, an adaptation of the *Consuetudines Cluniacenses*, which were adopted by 24 abbeys. K. reached its greatest doctrinal flourishing at that time under the priorate of John of K. (c. 1400). Among his ascetical-mystical writings belongs, as M. Grabmann has shown, the *De adhaerendo Deo*, until 1902 attributed to St. Albert the Great. The abbey, suppressed in 1556, was later restored to its goods in 1625, passed to the Jesuits in 1636, and in 1782 to the Order of the Knights of Malta. It was secularized in 1808.