King Charles III and his wife Camilla on Friday met his son Prince Harry, his wife Meghan and their two children for the first time in four years, British media reported.
The Press Association news agency said Harry's family had travelled from an unspecified destination in Europe for the meeting.
Harry arrived in the UK on Monday in a visit to mark the one-year countdown to next year's Invictus Games for wounded veterans, which he founded.
Meghan, seven-year-old son Archie and daughter Lilibet, 5, were initially set to miss the trip -- reportedly because they were refused police protection.
Buckingham Palace did not immediately respond to AFP's request for comment.
Harry and Meghan have lived in California since 2020 and the children had not seen their grandfather since 2022.
On Tuesday, Harry and other high-profile figures lost a court case they had brought against the UK's Daily Mail tabloid in which they had accused it of unlawful information gathering.
He will now face another court hearing on July 29-30, which could see him and the six other complainants ordered to pay substantial legal costs.
The prince gave emotional testimony during the proceedings in which several high-profile figures, including singer Elton John and actor Elizabeth Hurley, accused the tabloid publisher of invading their privacy.
The case, the third and final one brought by the Duke of Sussex in his acrimonious legal battle with British tabloids, has further strained relations with the royal family.
Harry, 41, has also been involved in other legal spats, including over his police protection in Britain following his dramatic departure from front-line royal duties six years ago.
Harry and Meghan left Britain for North America in 2020 amid a bitter feud with his family, which worsened as Harry published his tell-all memoir "Spare".
He subsequently said he wanted to reconcile with his father.
Harry has long blamed the media for the death of his mother Princess Diana, who was killed in a Paris car crash in 1997 while trying to shake off the paparazzi.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
Featured Video Of The Day
Pawar-Shinde Meet Triggers Buzz, Fresh Questions Over MVA Unity
"Bomb Them": Trump Says He's Left Instructions If Iran Assassinates Him 'It Is Such A Shock': Woman Compares New Zealand And Indian Work Culture Surgeons In Britain Stopping Operations Midway Amid Sweltering Heatwave US Sanctions Iranian Accused Of Embezzling For Tehran Elites Ukraine Creates "Long-Range" Command To Step Up Strikes On Russia Prince Harry And Family Meet King Charles For First Time In 4 Years: Report Track Latest News Live on NDTV.com and get news updates from India and around the world.