[1] Originally Eastern Orthodox, some time after 1596 the family joined the Greek Catholic Church following the Union of Brest.

Around that time, the family became increasingly polonized and converted preponderantly to the Roman Catholic faith.

[1] The family continues to be active and has created a foundation (Fundacja Rodu Szeptyckich), seated in Warszawa, Poland.

[3] Szeptycki's rights were created on April 12, 1469, by King Casimir IV Jagiellon in Gródek (present day Horodok, Lviv, Ukraine).

Jacek's sons were given the following estates: Zofia's and Jan Kanty's children: