Mierzewski family with Ostoja coat of arms

[1] They come from the Popowski coat of arms Ostoja z Popowo, located in the former district of Kościan of Poznań voivodeship.

[2] The Mierzewski family took their surname from the village of Mirzewo (sometimes Mierzewo, now Mierzejewo), located in the former district of Kościan of Poznań voivodeship.

[3] Listed below are selected source certificates concerning the Mierzewski family of the Ostoja coat of arms and the nesting villages of Popowo and Mirzewo until the mid-16th century.

The most important land properties belonging to the Mierzewski family with Ostoja coat of arms are listed below.

Popowo,[1][2] Mirzewo (Mierzejewo),[1][3] Czarnotki, Kępa, Nowa Wieś, Nądnia, Sulęcin, Borowo, Kociugi, Żółków, Kaczki Pośrednie,[1] Oborzyska.