-
Szach (1576–1578) Ioan Potcoavă (1577–1578)
Lukyan Chornynsky (1578) Jan
Oryszowski (1581)
Samuel Zborowski (1581–1584)
Bohdan Mokoshynsky (1584) Mykhailo...
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Cherkasy and Kaniv,
Prince Michał Wiśniowiecki, was
appointed hetman; Jan
Oryszowski served as his deputy. The Cossacks'
headquarters was
established at Trakhtemyriv...
- Odrzywolski, Okoński, Okuliński, Okuński, Olkiewicz, Orchowski, Orochowski,
Oryszowski, Osiński, Ostropolski, Ostroróg, Ostrowski, Oszczonowski, Ośmiałowski...
- Norejko, Nosalski, Obałkowski, Obrociwor, Obrowiecki, Olszewski, Omulecki,
Oryszowski, Ożygalski, Pakosławski, Pakosz, Pałucki, Paris, Parten, Parys, Patek...
