Treaty of Kurukove
The Treaty of Kurukove (Ukrainian: Куруківський Договір) was an agreement between Hetman Stanisław Koniecpolski of the Polish–Lithuanian Commonwealth and Mykhailo Doroshenko of the Ukrainian Cossacks. After four days of negotiations, it was signed on 5 November 1625 near Lake Kurukove, in what is now Kremenchuk.