[1][2] It took its name from its location at the time, Jazłowiec, on the Olchowiec (uk: Vilchivchik) river, a tributary of the Strypa, 16 km south of Buchach, Tarnopol Voivodeship, Galicia, now in Ukraine.

During its 80-year existence it acquired great prestige for an institution of its kind and led to the order's educational expansion across land which is now Poland, Belarus and Ukraine.

In 1863 he placed it and the estate in the hands of the Polish noblewoman, widow and mystic, Marcelina Darowska, for the establishment of a convent for her new religious order, the Congregation of the Sisters of the Immaculate Conception of the Blessed Virgin Mary, and for a girls secondary school and other educational provision among the local rural population.

Other topics included music and art, PE, religious instruction and civics in light of the partitioned nature of Poland as a political entity.

There was a particular accent, before 1918, on patriotism and catholicism as a counterweight to the threat presented to Polish heritage and identity in all three of the adjacent powers occupying the erstwhile state, Austria-Hungary, Prussia and the Russian Empire, where germanisation and russification were dominant.