Tsar Aleksei came to power on his father’s death without controversy. His first marriage, to Mariia Miloslavskaia, produced several sons, the first being Tsarevich Aleksei. His father designated him as his heir in a new public ceremony in the Kremlin in 1667, complete with brief speeches. The new ceremony was part of the new culture of the court, poetry and declamations authored by the Kiev-educated monk Simeon Polotkii. The model was the Baroque court culture of Poland and Central Europe. The death of tsarevich Aleksei and his mother led Tsar Aleksei to remarry in 1671. The second wife was Natal’ia Naryshkina, whose first son was the later Peter the Great. Tsar Aleksei designated as his heir Mariia’s second son Fyodor, who succeeded in 1676. His own two marriages produced no heirs. On his death the boyar elite and the church proclaimed the boy Peter as tsar, but the musketeers preferred Aleksei’s third son, the incapable Ivan Alekseevich. The result was two boy co-tsars under the regency of their older sister Sofiia. Peter overthrew her and her favorites in 1689, ruling in name with his brother.