a noble family that came to Rus’ from Lithuania at the end of the 14th century.
The Miloslavskiis rose during the mid-17th century, when Tsar Aleksei Mikhailovich married Maria Il’inichna Miloslavskaia and when B. I. Morozov, the tsar’s tutor, married her sister Anna. The father of Maria and Anna, Il’ia Danilovich Miloslavskii, was made a boyar and headed the government after the Moscow uprising of 1648. During the Peasant War led by S. T. Razin in 1670–71, Ivan Bogdanovich Miloslavskii, voevoda (military governor) of Simbirsk, aided in the suppression of the rebellion and in the savage reprisals taken against Razin’s supporters. With the accession in 1689 of Peter I, the son of Aleksei Mikhailovich and his second wife, N. K. Naryshkina, the influence of the Miloslavskiis declined. The family died out at the end of the 18th century.