Leaked records suggest Vladimir Putin likely has a fourth grandchild. The boy’s birth was not officially registered for nearly a year.

Katerina Tikhonova, Vladimir Putin’s younger daughter, has had a son named Adrian, according to the news outlet Agentstvo, citing leaked civil registry records.

Agentstvo reported that the boy was born in Moscow on August 15, 2025. The outlet names his presumed father as choreographer Igor Zelensky, who is in a relationship with Tikhonova. The boy, however, was registered under a different surname, as Adrian Igorevich Tikhonov.

The first document recording the birth was issued by the Central Clinical Hospital of the Presidential Property Management Directorate. Moscow’s Chertanovo civil registry office didn’t issue a birth certificate until July 10, 2026, almost a year after he was born. The reason for the delay is unclear.

Agentstvo suggests the delay may be linked either to the family’s wish to conceal the birth or to complications arising from the parents’ different surnames, Tikhonova and Zelensky.

Tikhonova married businessman Kirill Shamalov in 2013. In January 2018, it emerged that they had divorced. Tikhonova began a relationship with Igor Zelensky, then the artistic director of the Bavarian State Ballet in Munich. Journalists have found that the couple has a daughter, Elza, born in 2017.

Putin keeps his family out of public view, especially his sons with former gymnast Alina Kabaeva. He also has two more grandchildren, the children of his elder daughter, Maria Vorontsova. One was fathered by Vorontsova’s former husband, Dutch businessman Jorrit Faassen, and the other by Novatek manager Evgeny Nagorny.