Prince Harry arrived in the UK after King Charles personally shared his cancer diagnosis with his sons and family.
People confirmed that the Duke of Sussex landed in London on Tuesday after he jetted from Los Angeles on Monday.
The 39-year-old royal was reportedly escorted by two black SUVs and police vehicles from Heathrow Airport to Clarence House.
On Sunday, the monarch was captured attending church with Queen Camilla in Sandringham, later the next day he returned to his longtime residence in London to begin treatment as an outpatient.
King Charles III's cancer diagnosis came after he underwent a correction surgery for an enlarged prostate last month.
The procedure was successful and he was discharged after three days. Thanks to the treatment the cancer was detected early.
From the public engagements on record, it is believed that the father and son haven’t been together since the coronation in May 2023.
A source spilled the beans to the outlet saying, "That is good. Hopefully [Harry] will bring the grandchildren at some point too, as that would be lovely for all of them."
Notably, the Spare author rushed back solo to his home country, leaving his wife Meghan Markle and their two children four-year-old son Prince Archie and two-year-old daughter Princess Lilibet, at their home in Montecito, California.
The Duke and Duchess of Sussex moved to the former actress' home state after they both stepped down as working royals in 2020.
However, Harry has made several visits to Britain in order to testify in some cases, on Queen Elizabeth's death and for his father's coronation.
This visit to the UK marked Harry's first since he attended the WellChild Awards in December 2023.