[1] Modliszewo Kościelne bordered with Modliszewem Wielkim, from which the Modliszewskis of the Dryja coat of arms (they were of common origin with the Mileski family from Mileszyn)[3] and the Modliszewskis of the Topór coat of arms (who were a branch of the Kołybskis from Kołybek).
[4][5] The Modliszewskis of the Ostoja coat of arms were mentioned by Kasper Niesiecki in Polish Herbarz.
[2] The surname of the Modliszewski family of the Ostoja CoA is the nickname of Sitek, Sitko,[1] Sittko,[6] Sythek.
[7] According to prof. W. Dworzaczek in Modliszewo Kościelny was also inherited by the Modliszewskis who used the surname of Sobiejuch of an unknown coat of arms.
[8] Listed below are selected source testimonials concerning the Modliszewski of the Ostoja CoA and the nest village of Modliszewo Kościelny until the beginning of the 16th century.