The most famous Sejms included the Sejm Niemy or the Silent Sejm of 1717 which marked the beginning of Russian control over Polish internal affairs; the subsequent Repnin Sejm or the Sejm of 1767/1768, whose terms were dictated by the Russian ambassador Repnin; the Great Sejm – or the Four-Years Sejm of 1798–1792, which voted for the May Constitution of Poland; and the Grodno Sejm – last Sejm of the First Republic.