Son of a Polish freedom fighter. Jesuit priest. Teacher at Jesuit boarding schools in Tarnopol and Chyrów. In 1898 he became a missionary to lepers near Tananariwa, Madagascar. In 1902 he began construction of a leper hospital at Marana, Madagascar; he never gave up, but it took nine years to finish.
- 2 October 1912 in Marana, Fianarantsoa, Madagascar of natural causes
- relics entombed at the Jesuit basilica in Krakow, Poland in 1993
- God is gracious; gift of God (John)