Answer
Ivan V's mother was Maria Miloslavskaya, the first wife of Tsar Alexis of Russia. She came from a noble family and served as regent during the early years of Ivan V's reign, alongside her brother-in-law, Fyodor III. Miloslavskaya was known for her strong personality and political influence, and her faction at court was in constant rivalry with that of her sister-in-law, Natalia Naryshkina, the mother of Peter the Great.