The family traces its name to Roman Vasilyevich Monastyrev, nicknamed Mussorga (18th generation from Rurik).
After the death of his father Yuri, the underaged Prince Alexander was taken by his grandmother – Princess Nastasia – who bought him a votchina (estate) in the White Lakes, became a nun and nursed him in the monastery, from which he was called Alexander the Monastery [ru] (Александр Юрьевич Монастырь), and from him, the Monastyrevs started.
In 1857, Historian Pyotr Dolgorukov did not deny their ancestry but explicitly questioned their future existence, writing only 5 lines about the family, finishing the paragraph with the anti-punctuation [?.]
Lyapun and Tretyak, the Yakov children, the Musorgskies, were granted estates in the Moscow district on 2 October 1550.
The coat of arms of this family is not in the armorial, and we doubt whether it [the feminine word for 'family' in Russian is also identical to 'surname' in English] still exists today?.