In an initial evaluation of the source material contained in RPG IV (cf. Neuerscheinungen 1995/II, p. 60) the editors analyze 4028 regesta from German-speaking areas recorded by the Penitentiary during the pontificate of Pius II. (1458-1464). This is the first time the registers of the supreme Papal tribunal on penance and dispensations have been examined in this way and it provides an entirely new perspective on the religious situation in the mid 15th century.