Transylvanian campaign into Poland (1657)

Transylvanian campaign into Poland
Part of the Deluge
Transylvanians discussing strategy with King Charles X of Sweden in 1657
Date March – July 1657 Location Poland Result Disputed (see result)
Belligerents
Polish–Lithuanian Commonwealth Crimean Khanate	Transylvania Swedish Empire Cossack Hetmanate
Commanders and leaders
Lubormirski Sapieha Stanislaw Potocki Melchior Sawicki Stefan Czarniecki	George II Rákóczi   John Kemény  (POW) Péter Huszár Ferenc Ispán András Gaudi Charles X Gustav Erik Dahlbergh Adolf Johan av Pfalz Jerzy Niemirycz Johan Benedikt von Schönleben Jacob Kasimir De la Gardie Georg von Waldeck Anton Zhdanovich Ivan Bogun
Units involved
Brest garrison Warsaw garrison	Swedish Life Guard of Horse
Strength
12,000 men	24,000–30,000 men 30 cannons 10,000 men 6,000 men[a] Total 40,000–46,000 men / 70,000 men[1]
Casualties and losses
Unknown	Light Very heavy

The Transylvanian campaign into Poland (Swedish: Transsylvaniens kampanj in i Polen; Ukrainian: Трансільванський похід на Польщу) also called the Brest Campaign^[2] or Rakoczy's Campaign^[3] (Polish: Najazd Rakoczego) was a campaign by Transylvania, Sweden, and the Cossack Hetmanate into the Polish–Lithuanian Commonwealth during the Deluge in 1657. The allied army saw success in the beginning,^[4] but when Denmark declared war on Sweden, Charles abandoned the Transylvanians, which led to their defeat. During the campaign, the allied forces successfully managed to capture both Warsaw and Brest from the Poles but were later pushed out from the country after the forces of Stefan Czarniecki intervened in the conflict.^[5]

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