Mukhsha Ulus
Mukhsha Ulus (Tatar: Мухша олысы, موحشا ﯘلىسى, romanized: Muxşa olısı), or Naruchat Duchy (Tatar: Наручат бәклегел, ناروچات بەكلئگئل, romanized: Naruçat bäklege), was a subdivision of Golden Horde located in modern-day Mordovia, Penza Oblast and Tambov Oblast of Russia. It existed from the 13th to 15th centuries with its capital in Mukhsha.