Polish Reconstruction after the Deluge

Timeline

1. 1660Polish-Lithuanian Commonwealth · PolandAfter the Deluge ended, the Commonwealth faced an empty treasury, unpaid troops, and factional divisions among the nobility. Estates and towns across the land urgently needed repair, and the central royal authority, constrained by the noble sejm, struggled to restore its capacity for taxation and recruitment.
2. 1660Oliwa · PolandIn 1660 Commonwealth forces gradually recovered territories occupied by Sweden, and that same year the Treaty of Oliva was signed; Sweden recognized Commonwealth sovereignty and withdrew from most occupied areas, initially stabilizing Poland's eastern defenses.
3. 1667Andrusovo · RussiaThe 1667 Treaty of Andrusovo ended the Polish-Russian War: the Commonwealth retained right-bank Ukraine and most of Belarus but lost left-bank Ukraine and Kyiv. After the treaty, the sejm pushed land registration, military reorganization, and fiscal reform; in the late 1660s the Commonwealth entered a period of slow reconstruction.