To which religious order did Gregor Mendel belong?

Gregor Mendel belonged to the Augustinian religious order. He entered the Augustinian monastery of St. Thomas in Brno in 1843, taking the religious name Gregor, and was ordained a Catholic priest in 1847.

The monastery was more than a place of worship: it was also a center of learning with a library, gardens, and an intellectual community. This setting gave Mendel access to the space and support needed for his plant-breeding experiments. His religious superiors, particularly Abbot Cyril Napp, encouraged his education and scientific interests.

Mendel later studied at the University of Vienna and returned to Brno, where he conducted his pea experiments. In 1868 he became abbot of St. Thomas's Abbey. His identity as an Augustinian friar is sometimes obscured by the popular image of him simply as a monk or “father of genetics,” but Augustinian is the specific order affiliation. He remained connected to the monastery throughout his scientific career.