Prince Albert and Princess Charlene have attended a poignant funeral for their relative, Antoine de Massy.
The Monégasque royal couple remembered the 29-year-old, who was Albert's first cousin once removed, in a service at Monaco Cathedral on Wednesday.
Antoine was found dead in a park in the principality on 25 October after he didn't turn up for a family lunch. A police investigation into his death is currently ongoing.
A moving photograph of the service and coffin was shared on social media by the royal house, captioned: "In memory of Antoine de Massy, whose funeral was celebrated today in Monaco Cathedral."
Albert and Charlene, who have been married since 2011, appeared to be in the front row, kneeling to pay their respects.
A vigil was also held on Tuesday night in the Palace's chapel, while a burial will take place at the Monaco cemetery.
Tributes to remember Antoine after his death
Antoine was a tech entrepreneur who had spent much of his life in Miami, studying international relations and affairs at Florida International University, and was a gifted tennis player.
Antoine's father, Baron Christian de Massy, has left a small crocheted replica of Tounin, his son's beloved dog, in his coffin as a tribute.
Christian described his son as a "boy with a big heart", saying he was "my life" in an interview after his death with Corriere della Sera.
© Instagram / antoinedemassySpeaking about his son's untimely death, he said: "Every day, for 29 years, we were always together."
He told the newspaper: "When my nephew Sébastien told me that there was no hope for my only son Antoine, he was dead, I couldn't understand. I told him, 'But if he's lost, let's go look for him.'"
"It absolutely wasn't an accident, nor was it suicide, nothing like that, but I can't talk about it now because there's an ongoing investigation."
A memorial has been set up in Antoine's memory in Monaco, close to where his body was found, including flowers, candles and the principality's flag.
© Penske Media via Getty ImagesThere are also tennis balls – a reference to his love of the sport – and a framed photograph.
Latest in the police investigation
On 29 October, a Ukrainian man was charged with involuntary manslaughter over Antoine's death.
The 42-year-old man, who was seen in CCTV footage, was also charged with failing to assist a person in danger.
He had been filmed leaving the Sass' Cafe club alongside Antoine at 3 am.
© GettyMonaco's prosecutor general, Stéphane Thibault, said he had been remanded in custody after refusing to answer questions.
In a poignant statement after Antoine's death, Prince Albert and Princess Charlene said: "Their Serene Highnesses Prince Albert II and Princess Charlène were saddened to learn of the death of Antoine de Massy, aged 29, the grandson of Princess Antoinette, the elder sister of Prince Rainier III.
"A keen tennis player, he was part of a family history closely linked to the sport in the Principality.
"Their Highnesses share in the grief of his family and loved ones and offer them their sincere condolences at this painful time."
