
Co-tsar with Peter the Great, mentally disabled.
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Following the death of Feodor III, Ivan V was crowned co-tsar alongside his half-brother Peter I, with his sister Sophia Alekseyevna acting as regent. This arrangement was forced by the Streltsy uprising and aimed to prevent a succession crisis, but Ivan's mental disabilities left him as a figurehead.
The Moscow Streltsy (musketeers) revolted, demanding that Ivan V be crowned tsar alongside Peter I. The uprising resulted in the massacre of several Naryshkin family members and the installation of Sophia as regent. Ivan's role was passive, but the event defined his reign.
From 1682 to 1696, Ivan V served as co-tsar with Peter I, but due to his mental and physical disabilities, he took no part in governance. Real power was held by his sister Sophia until 1689, and then by Peter. Ivan's reign was nominal, and he remained a ceremonial figure.
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