A letter from the Terek governor to Moscow in 1621 indicates the arrival of the embassy of the Kumyk ruler Soltan-Magmut (Soltan-Mahmud, Soltan-Mut) with the Mychkiz and Okotsk societies, with 8 princes, including the Baragun Kuden-Murza, Batay-Murza Shikhmurzin 38 of his bridles.