His parents were Antal Hümpfner, a farmer, and Zsuzsanna Temmer. He entered the order on August 28, 1901. He took his first vows on September 12, 1905, and his final vows on June 25, 1908. He was ordained a priest by Bishop Károly Hornig of Veszprém on July 8, 1908. He earned his doctorate in theology in 1911 at the University of Innsbruck. In addition to his native German, he read and wrote in Hungarian, Latin, French, Italian, and Serbian. During the Hungarian Soviet Republic, when he was unable to teach religion, he worked as a gardener at the Horticultural Training Institute on Ménesi Road. In 1930, as secretary to the general abbot, he traveled throughout Europe and Canada, visiting numerous Cistercian architectural sites and collecting literature and postcards about them; he also visited Hungarian parishes in Canada to explore the possibility of establishing a new one there. He died of prostate and bladder cancer and was buried in Felsőörs; Sándor Klempa, Apostolic Administrator of Veszprém, attended the funeral, as did Vendel Endrédy.

Besuch in Chiaravalle Milanese. In. Cistercienser Chronik 19 (1907), 204–212.
Der bisher vermisste Teil des Exordium Magnum S.O.C., In. Cistercienser Chronik 20 (1908), 97–106.
Die vier Evangelion der Bibel des Hl. Stephan Harding. Innsbruck, 1911. (doktori disszertáció – kéziratban)
Cistercienser Reise durch die Schweiz, In. Cistercienser Chronik 27 (1915), 113–122.
Die Bibel des hl. Stephan Harding, In. Cistercienser Chronik 29 (1917), 73–81.
A középiskolai diákpasztorációból. In. Katholikus Nevelés 13 (1921), 100–103.
Aus der Bibliothek von Cîteaux. In. Cistercienser Chronik 38 (1926), 343–346.
Les fils de S. Bernard en Hongrie. Bp., 1927.
Ikonographie des Hl. Bernhard von Clairvaux. – Iconographia S. Bernardi abbatis Claravallensis. I–II. köt. Augsburg–Köln–Wien, 1927.
Domus Generalitia Ordinis in Urbe. In. Cistercienser Chronik 41 (1929), 61–65.
Exordium Cistercii cum Summa Cartae Caritatis et fundatio primarum quattuor filiarum Cistercii. Vác, 1932.
Archivum et bibliotheca Cistercii et quatuor primarum filiarum Eius, Roma 1933, In. Analecta Cisterciensia 2 (1946), 119–145.
A zirci apátsági templom ásatása (1912–13). In. A Veszprémi Múzeumok Közleményei 2 (1964), 119–140.