A Rus' principality on the upper Volga, granted as an appanage in 1246, that emerged as Moscow's chief rival for supremacy in northeastern Russia under Mongol/Golden Horde suzerainty.
Conquered by Ivan III of Moscow in 1485 and annexed as an appanage, ending its independent existence.
Covers the Moscow-Tver rivalry for the Vladimir grand-princely throne that defines Tver's medieval history, told mainly from Moscow's side — the closest verified English monograph touching Tver specifically.