Prince Harry’s four-day visit to the U.K. included a reunion with his father, King Charles, after nearly two years, as well as a secret visit to another member of the royal family.

According to a report from Hello! published on Saturday, Sept. 20, Harry, 41, privately visited Kensington Palace to “personally pay his respects and offer condolences” to Prince Edward, the Duke of Kent, following the death of his wife, Katharine, the Duchess of Kent. She died on Sept. 4 at the age of 92.

Although Harry was not able to attend Katharine’s funeral on Sept. 16, as he had already left the U.K., a source close to the Duke of Sussex told the outlet that he “loved catching up with family, friends and colleagues.”

“His only regret was not being able to stay longer and see more people, but the meetings in Ukraine had been in the diary for a long time, and it mattered to him to be there in person to see the Invictus Games Foundation’s growing work and the progress at Superhumans,” the source added.

“The whole trip felt like a real success for everyone involved,” the source said. “His passion for his patronages and the causes he cares about hasn’t dimmed one bit — he’s already buzzing to get back and do more.”

The Duke of Sussex made several public appearances during his U.K. trip, including at the WellChild Awards in London on Sept. 8, where he crouched to greet children, wrapped families in hugs and cracked jokes. In Nottingham the next day, he danced into a room at the Community Recording Studio (CRS), laughing and bantering with young activists.

“He’s still the same person,” said CRS’s Trevor Rose. “He wants to feel the energy here. He cares — and that’s the main thing.”

One of the most newsworthy moments came when Harry arrived at Clarence House on Sept. 10, and disappeared inside for a long-awaited, private meeting with King Charles. He emerged just under one hour later — and experts were quick to point out that this visit could be the first step on the road to reconciliation with his father.

“It’s a massive step in the right direction,” Queen Elizabeth’s former spokeswoman Ailsa Anderson told  following the historic meeting. “It’s a building of trust.”

Harry and the King, 76, have been estranged for more than 18 months. As  previously reported, the meeting not only served as a chance for the Duke of Sussex to rekindle his relationship with his father, but also with his brother, Prince William.

While the encounter marked a hopeful step forward, royal insiders caution that a long road lies ahead before full reconciliation can take place.

“It shows the way forward,” an insider with ties to both sides told . “It is a good starting point.”

Just a few days after the meeting, Harry made a surprise visit to Kyiv, Ukraine, with his Invictus Games Foundation and spoke with The Guardian while there.

“The focus really has to be on my dad,” he said, while also acknowledging his past revelations in interviews and his memoir Spare. “My conscience is clear.”

When asked if he will ever bring his children to the U.K. despite his security concerns, Harry told the outlet, “Yes, I would. This week has definitely brought that closer.”

“Whatever has gone on in the past, it is good to see the family trying to repair itself or communicate at least,” a source with close ties to the palace added . “Everyone has to have compassion for all sides.”

After visiting the U.K. and Ukraine, Harry returned to Montecito, Calif., to be with wife Meghan Markle and their children, Prince Archie, 6, and Princess Lilibet, 4. On Saturday, Sept. 20, Meghan, 44, and Harry stepped out together to the One805LIVE! concert, which supports Santa Barbara County’s first responders and was held at Kevin Costner’s oceanside estate in California.