Malleus Maleficarum in a 1669 edition.
Heinrich Kramer (c.1430–1505), also known under the Latinized name Henricus Institoris, was a German churchman and inquisitor.
Born in S lestat, Alsace, he joined the Dominican Order at an early age and while still a young man was appointed Prior of the Dominican house of his native town.
At some date before 1474 he was appointed Inquisitor for the Tyrol, Salzburg, Bohemia and Moravia. His eloquence in the pulpit and tireless activity received recognition at Rome and he was the right-hand man of the Archbishop of Salzburg. By the time of the Bull Summis desiderantes of Pope Innocent VIII in 1484 he was already associated with Jacob Sprenger to make an inquisition for witches and sorcerers. In 1485 he drew up a treatise on witchcraft which was incorporated in the Malleus Maleficarum (literally "The Hammer of Witches").
Kramer failed in his attempt to obtain endorsement for this work from the top theologians of the Inquisition at the Faculty of Cologne, and they condemned the book as recommending unethical and illegal procedures, as well as being inconsistent with Catholic doctrines of demonology.
In 1495 he was summoned to Venice to give public lectures, which were very popular. In 1500 he was empowered to proceed against the Waldensians and Picards.
He died in either Br nn or Olm tz, in Bohemia, in 1505.
- Malleus Maleficarum
Several Discourses and Various Sermons upon the Most Holy Sacrament of the Eucharist, Nuremberg, 1496
A Tract Confuting the Errors of Master Antonio degli Roselli, Venice, 1499
The Shield of Defence of the Holy Roman Church Against the Picards and Waldenses, c. 1500
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