GIACOMO of UTERBOC. - Born in 1381 near Jüterbog near Berlin, son of a poor farmer; his name was Benedetto Stolzenhagen; he became a monk at the age of twenty in the Cistercian abbey of Paradies near Frankfurt an der Oder (hence the nickname G. de Paradiso). He was sent to the University of Kraków, where he rose to the rank of lecturer and university preacher (thus earning the name de Polonia). In 1441 he entered the Carthusian monastery in Erfurt (hence the names de Carthusia, de Clusia, Erfordensis). He carried out his activity at the University of Erfurt as a teacher of canon law and served as rector in 1455. He died around 1465.
G. was a fervent supporter of the Reformation and conciliar principles, in which he saw the guarantee of reform itself. In addition to reformist sermons and writings, he produced treatises on dogmatic questions, moral theology, ascetics, and canon law. The simplicity of his language reveals the influence of humanism. The Life of G. Wolrad has not been published in its entirety.
Of his numerous writings (about eighty), no complete edition exists. For what has been published of him in incunabula, cf. Hain, *De erroribus et moribus Christianorum* (also in E. Jacob, *Joh. von Capestrano*, II, Breslau 1911, pp. 283 ff.); *Petitiones religiosorum* (in E. Klupfel, *Vetus bibliotheca* etc., Freiburg 1780, pp. 146–69); *De negligentiia praelatorum* (in Chr. F. W. Walch, *Monumenta inedita medii aevi*, II, Göttingen 1764, p. 67); *Avisamentum ad papam* (in Klupfel, op. cit., pp. 134–45); *De septem statibus ecclesiae* (in Walch, op. cit., II, fasc. 2); *De causis multarum passionum* (in B. Pez, *Bibliotheca ascetica*, VII, Regensburg 1725, pp. 389–44); *De indulgentiis* (*De anno iubilaei*), in Walch, op. cit., II, fasc. 2, p. 163.