Kiedrzynski family with Ostoja coat of arms
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The Kiedrzynski family - a Polish noble family with the Ostoja coat of arms, belonging to the heraldic Clan Ostoja (Moscics),[1][2] originating from Kiedrzyn (now a district of Częstochowa).[3] Kiedrzyński was mentioned by Kasper Niesiecki in Herbarz Polski.[4]