Putin has a secret brood of children being raised in luxury comparable to Russian tsars, report claims

• Putin has several young children with his rumored girlfriend, Alina Kabaeva, Proekt reported.
• He built a 13,000-square-foot mansion for them close to his main residence in Valdai, Proekt said.
• The estate boasts a "huge spa complex" with cosmetology and dentistry areas, the report said.

Russian President Vladimir Putin has a brood of secret young children with his rumored gymnast girlfriend, who are being raised in luxury similar to that of Russian tsars, according to the investigative Russian outlet Proekt.