Hieronymus Lotter (* around 1497 in Nuremberg; † 22 July 1580[1] in Geyer / Ore Mountains) was a merchant and several times mayor of Leipzig, construction manager for important sovereign building projects in Saxony and the driving force behind extensive building measures by the municipal council in Leipzig. Lotter was the Master builder of Maurice, Elector of Saxony, under the direction of the principal toolmaster and master builder Caspar Vogt von Wierandt († 1560). According to earlier research, he was considered an important architect of the Renaissance; today its role is seen in a more differentiated way and above all its organizational function is emphasized.