Eduard Mühle, ed., Monarchische und adlige Sakralstiftungen im mittelalterlichen Polen [Royal and noble sacral foundations in Medieval Poland] (Berlin: Akademie Verlag, a Scholarly Press of the Oldenbourg Group, 2013 [StiftungsGeschichten 9, in cooperation with the German Historical Institute Warsaw]), 556 pp. ISBN 978- 3-05-005926-6. During his five-year tenure (2008–13) as director of the Deutsches Historisches Institut Warschau / Niemiecki Instytut Historyczny w Warszawie, Professor Eduard Mühle of Westfälische Wilhelms-Universität in Münster, Germany, was extraordinarily successful in enhancing contacts between German and Polish medieval historians,1 and, more broadly, contributing to a growing understanding and appreciation of the work of the latter among the former. Conferences, workshops, and above all publications have contributed to this. The volume reviewed here represents the third in a series of edited works containing, in translation, the cutting edge of contemporary Polish historiography on a series of topics generally related to the question of power in Piast Poland (the era that ended in 1370).