Michael Schumacher's brother, Ralf, announced that he is gay in a social media post on Sunday.
The former Formula One star shared a picture standing arm-in-arm with his partner on Instagram as the identity of the mystery man was revealed.
A close friend of the pair said Schumacher is in a relationship with his business manager, Etienne.
The photo features the couple on a boat, with the caption: "The most beautiful thing in life is when you have the right partner by your side with whom you can share everything."
The 49-year-old's post was flooded with well-wishes and support from fans and celebrities.
German actress Carmen Geiss revealed in a comment on the picture that the duo had been together for two years.
She wrote: "You have the best partner, Etienne, you can imagine. After two years you can finally show your love to the world. I have known Ralf for more than 25 years and he has always been a great joy to me.
"Always liberal, a good-hearted person who I can call day and night and above all has always been honest with me in his position.
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Michael Schumacher's brother, Ralf has announced that he is gay in a social media post on SundayGetty"I am happy that I got to be a part of this love and even more happy for the two who searched and found each other, because I also love Etienne deeply."
"They met in Monaco. Ralf lives in Salzburg with his son, Etienne lives in Nice. But the two are together quite often," Geiss told BILD.
She added that the couple are "sensationally happy" and have "never had an argument or dispute".
Schumacher was previously married to Cora Schumacher - a former Playboy model.
Ralf is no longer in close contact with brother Michael and his wife Corinna, but says he is always there to offer support
GETTYThey were married for 14 years before the pair split in 2015.
Their son David - who was born in 2001 - reacted to his father's post saying: "I am very happy that you have finally found someone with whom you really feel that you feel very comfortable and secure, no matter if you are a man or a woman.
"I am 100 per cent behind you dad and wish you all the best and congratulations."
Ralf is no longer in close contact with brother Michael and his wife Corinna, but says he is always there to offer support.
