FTP, name this treaty signed on September 10, 1721, which made peace between Russia and Sweden and ended the Great Northern War.
Twenty-two years after it was signed, one of its signatories was compelled to accept Adolf Frederick of Holstein-Gottorp-Eutin as heir apparent in the Treaty of Abo.  It was reached a year after one of the signatories gave up its right to free passage of Oresund through the Treaty of Frederiksborg.  It was negotiated by Frederick of Hesse-Kassel, the husband of Ulrika Eleonora and brother-in-law of the monarch who had fought most of the war it concluded.  It was signed in the modern town of Uusikaupunki, and gave one nation Ingria, Livonia, and Estonia.  FTP, name this treaty signed on September 10, 1721, which made peace between Russia and Sweden and ended the Great Northern War.
Twenty-two years after it was signed, one of its signatories was compelled to accept Adolf Frederick of Holstein-Gottorp-Eutin as heir apparent in the Treaty of Abo.  
Treaty of Nystad