Kammala jumla mai zuwa: Volga Bulgaria a ƙarshe ya faɗi ga rundunonin yariman Mongol Batu Khan a ƙarshen 1230s (duba
mamayewar Mongol na Volga Bulgaria). Mazaunan, sun haɗu da Kipchaks na Golden Horde, an san su da "Volga Tatars". Wani ka'idar kuma tana nuna cewa babu canje-canje na kabilanci a wannan lokacin, kuma 'yan Bulgaria kawai sun canza zuwa yaren Tatar na Kipchak. A cikin 1430s, yankin ya sake samun 'yanci a matsayin tushen Khanate na Kazan, babban birni da aka kafa a Kazan, sama da Volga daga babban birnin Bulgaria da aka rushe.