Prince Albert II of Monaco's two love children have been seen together in a series of rare family photos.
The royal's first-born child Jazmin Grace Grimaldi, 29, and eldest son Alexandre Coste, 18, were snapped celebrating Alexandre's birthday over the weekend.
Jazmin shared a series of snaps from her half-brother's celebrations to her Instagram page.
"It's a Celebration 🎉 🎂🍾❤️🎁! Joyeux anniversaire mon petit frère Alexandre!💋" she captioned the photos, translating to "happy birthday little brother."
The first photo showed Jazmin and Alexandre cuddled up with a friend, while others showed the siblings posing together.
One captured Alexandre standing at a table covered in cake and champagne with sparkling candles as he celebrated his milestone birthday.
Prince Albert II did not appear to be in attendance at the celebrations, though he is said to have a more involved relationship with his two eldest children these days.
He fathered Jazmin and Alexandre with two different women before his marriage to Princess Charlene of Monaco.
Jazmin was born in 1992 after the Monegasque prince had a three-week fling with her mother, Tamara Rotolo, in 1991.
Albert had a longer relationship with Alexandre's mother, Nicole Coste, after he met the flight attendant in 1997.
They allegedly maintained a secret relationship for years, but Albert broke it off not long before Alexandre's birth in 2003.
Initially, the royal refused to acknowledge his two love children.
Jazmin had a private relationship with her father until she was 14 and the press found out about her, at which point Albert chose to formally acknowledge her.
Alexandre was a different story; the prince resisted claims that the boy was his son, even when a DNA test proved he was Alexandre's father.
It wasn't until Albert was days away from taking up his father's throne as Monaco's sovereign in 2005 that he finally publicly acknowledged Alexandre.
These days he's understood to have a more positive relationship with his two eldest children, especially after welcoming his own legitimate heirs in 2014.
Prince Albert II and Princess Charlene welcomed their twins, Princess Gabriella, Countess of Carladès, and Jacques, Hereditary Prince of Monaco on December 10, 2014.
They secured the royal line and are believed to have good relationships with their older half-siblings.
As for Princess Charlene, she also grew to care for her husband's eldest children.
"At first, Charlene did resent Albert's other kids and she felt rejected," a royal source told Woman's Day in 2019.
"Once Charlene gave birth to the twins, the official royal heirs, she wanted them to grow up knowing their brother and sister."
"Charlene goes out of her way to make them feel part of the family – as they indeed are."