He's notoriously private about his family life, but over the years Vladimir Putin has let slip a few details about his daughters.
The Russian President, 69, is very reluctant to share any information about his children - who he had with ex-wife Lyudmilla Putina.
And he's even less likely to ever share details about his 'secret' family, who he reportedly has with Alina Kabaeva, an Olympic gold medal-winning rhythmic gymnast 36 years his junior.
It has been claimed she gave birth to twin girls in February 2015, with Alina speaking of a mystery man who she "loves very much."
Media outlets have also reported that they share two boys - though their official existence, names or ages haven't been confirmed.
Mystery surrounds whether he also shares a child with Svetlana Krivonogikh, a former cleaner who is now one of the country's wealthiest women.
His rumoured daughter Luiza Rozova, 18, admitted to Russian GQ that she "probably looks similar" to a young Putin.
We've taken a look at the lives of the two families - after it claimed that Putin's 'secret' family were holed up in a Swiss mansion hiding out as the war rages on.
Katerina Tikhonova and Maria Faassen
Putin announced that he had separated from his daughters' mother, Lyudmilla Putina, after almost 30 years of marriage in a staged interview with a Russian journalist in 2013.
Katerina, 35, and Maria, 36 have never been officially confirmed as Putin's children - but live relatively normal lifestyles.
So secretive is Putin, that Katerina was only publicly named by a Russian media outlet as Vladimir Putin's younger daughter in 2015.
At the time, he refused to confirm or deny she was his daughter at a press conference.
"I have never been specific about the workplaces of my daughters and their line of work, and I'm not going to do so now. For many reasons, including security considerations," he said.
But he confirmed that his daughters were living in Moscow where they are "making the first steps in their careers, and doing well."
"They are not involved in business or politics," he added, revealing that they were both fluent in three European languages.
"I'm a proud father," he said. "My daughters have never been star-struck children. They never craved the limelight.
They are rarely photographed and avoid public events, in favour of jobs in business and medicine.
In 2020, Putin told Russian media how the country's coronavirus vaccine had been tested on one of his daughters - but did not reveal who.
He disclosed that he is a grandfather five years ago in an interview with Oliver Stone, the Hollywood director.
"Are you a grandfather yet?" Stone asked Putin during an interview. "Yes," replied Mr Putin.
"Are you a good grandfather, do you play with them in the garden?" Stone then probes. "Very seldom, unfortunately," Mr Putin replies, with a seemingly sad smile.
Putin did not say how many grandchildren he has, but according to media reports, Maria, 36, is married to Jorrit Joost Faassen, a Dutch businessman, and they have a child.
She followed a career in biomedicine, and became a genetics researcher, with a specialism in dwarfism.
In 2013 Katerina, 35 married Kirill Shamalov, a Russian billionaire who owns a large stake in a gas and petrochemical company, but the pair have now split.
Last week, a group of pro-Ukrainian protesters broke into a multimillion beach-front French villa reportedly belonging to Shamalov, in a bid to turn it into a shelter for refugees.
"I am proud of them," Mr Putin told Stone. "They are not into big business or politics. They are into science and education."
Katerina previously competed in acrobatic rock'n'roll dance competitions and headed up a mathematical research centre at Moscow State University.
In 2013, she published her PhD dissertation studying technology that could help astronauts to keep their balance in changing gravity - possibly linked to her love of dancing.
In 2021, she helped launch a Russian version of the video-sharing app TikTok, which has recently stopped working in the country.
The Yappy app was produced with the support of the Innopraktika foundation run by Katerina.
In another interview with Stone, Mr Putin says he almost refused to stand for president because of what he saw as a risk to his children.
"I didn't know how long I could do it for because at any moment they could come along and say I was dismissed. And I could think about one thing only: where I would hide my children," he said.
Putin's 'secret' children
Putin, 69, is also thought to have at least children with Alina Kabaeva, 38, a former Olympic gymnast.
He also reportedly has an 18-year-old daughter - Luiza Rozova, 18, the daughter of Svetlana Krivonogikh, 45, a former cleaner who now partly owns a major Russian bank and one of the country's wealthiest women.
Putin has never acknowledged Luiza - whose real name is Elizaveta Krivonogikh, according to the Daily Mail.
She lives in St Petersburg and uses the surname of her maternal grandmother.
Her mum Svetlana was born in 1975 and grew up in a crumbling pre-Soviet communal flat, where five families shared a kitchen and bathroom.
She worked as a cleaner initially, but by 30, lived in an exclusive gated community, the Mail reports, and became a shareholder of the Rossiya Bank.
She now owns a ski resort where Katerina got married in 2013 and has not spoken on the claims, even as her daughter has come into the limelight on the web.
Luiza shared insights into her luxurious life on Instagram, regularly updating her followers on her life as an ambassador for a high-end brand.
But she deleted it after Russia invaded Ukraine.
According to the Mail, she wasn't upset when her name became public. She told a journalist: "Oh no, not at all. My life was so stagnant, I am very grateful for the chance to be in the limelight, that people heard about my account.
"I'm not trying and never have to popularise myself. I am feeling very well indeed, don't worry about me. My life goes on, and all is well."
But unlike Putin's official children, who reportedly have homes in London, Katerina said she plans to stay in Russia.
Asked if she wanted to study abroad, as some of her friends have done, she replied: "Of course not, I don't want to leave.
"I am very taken by the thought that there is a possibility to go to such a wonderful place like New York, or to fashion's boiling points like Milan and Paris.
"But I will, of course, stay in my country, in my native city. I might possibly go to Moscow, I like Moscow very much, too.'
And she appeared similar to most teenagers, as she told a Clubhouse audience, that she lived 'in a bubble." She said: "You are right that I live in my art world, it's true, I live in my bubble.
"I don't watch TV, sometimes I follow news on Telegram, but not too much. I watch fashion shows, I buy Vogue magazine.
"I like to go to a nearby restaurant, have tasty pasta and discuss the latest gossip and investigations with my friends."
Meanwhile, Olympic gold-winning gymnast Alina Kabaeva, 38, is believed to have been holed up in a chalet in the Swiss Alps for weeks.
She is thought to have at least three children with Putin and while they have never officially confirmed their relationship, there are rumours that they may have married.
At least one child is thought to have been born in a Swiss private clinic.
