text: The Simferopol Hoard contains artifacts from this kingdom, and was unearthed near its regional capital of Qrim.
full_question: The Simferopol Hoard contains artifacts from this kingdom, and was unearthed near its regional capital of Qrim. A ruler of this kingdom sought refuge at the court of Vytautas the Great when he suffered successive defeats at the Kondurcha and Terek rivers. Sarai served as the capital of this kingdom, whose ruler Tokhtamysh organized an invasion of Transoxiana that was repulsed by Tamerlane after he united its Blue and White factions. Batu Khan founded, for 10 points, what westernmost khanate of the former Mongol Empire?
first_sentence: The Simferopol Hoard contains artifacts from this kingdom, and was unearthed near its regional capital of Qrim.