Coat of arms of the Polish–Lithuanian Commonwealth

The Coat of Arms of the Polish–Lithuanian Commonwealth was the symbol of the Polish–Lithuanian Commonwealth, representing the union of the Crown of the Polish Kingdom and Grand Duchy of Lithuania. It combined their previously separate coats of arms:

Coat of arms of Poland, the White Eagle

Coat of arms of the Grand Duchy of Lithuania, the Knight / the Chase

During the January Uprising a similar coat of arms was proposed for the restored Commonwealth, with Archangel Michael, the coat of arms of Ukraine added as the third element. However, it was never officially introduced.

Coat of arms of November Uprising

Coat of arms for a proposed Polish–
Lithuanian–Ruthenian Commonwealth

Polish-Lithuanian coat of arms under Henry

Polish-Lithuanian coat of arms under Vasa dynasty

Polish-Lithuanian coat of arms under Michael I. Korybut coat of arms is placed in the middle of the shield.

Polish-Lithuanian coat of arms under John III Sobieski. Janina coat of arms is placed in the middle of the shield.

...
Wikipedia