 In 1919 he was made the pastor of the parish of "Our Lady of Loreto" at Saint Florian's Church in the "Prague" district.Kłopotowski established his own religious congregation - the Sisters of the Blessed Virgin Mary of Loreto - on 31 July 1920 with the aid and encouragement of the Apostolic Nuncio to Poland Achille Ratti - the future Pope Pius XI.He died on 7 September 1931 and was interred at Powązki Cemetery.