King Charles shakes hands, chats with crowd at most significant public outing since cancer diagnosis

King Charles III shook hands and chatted with onlookers after attending an Easter service at Windsor Castle on Sunday in his most significant public outing since being diagnosed with cancer last month.

The king, dressed in a dark overcoat and shiny blue tie, smiled as he made his way along a rope line outside St. George's Chapel for about five minutes, reaching into the crowd to greet supporters who waved get-well cards and snapped photos on a chilly early spring day. "You're very brave to stand out here in the cold," Charles told them.

"Keep going strong," one member of the crowd shouted as Charles and Queen Camilla walked by.

The 75-year-old monarch's appearance was seen as an effort to reassure the public after Charles stepped back from public duties in early February following an announcement by Buckingham Palace that he was undergoing treatment for an unspecified type of cancer.

The king has continued fulfilling his state duties, such as reviewing government papers and meeting with the prime minister. But his attendance at a traditional royal event like the Easter service is seen as a sign that he is beginning a managed return to public life. British media reported last week that Charles would slowly increase his public appearances after Easter.

The service itself was smaller than usual as Kate, the Princess of Wales, is also being treated for cancer and has paused public duties. The princess, her husband Prince William and their children did not attend.

Kate shock's announcement that she, too, had cancer was made on March 22, after weeks of speculation about her health and whereabouts following major abdominal surgery in February.

Charles' enforced absence from public life has been a setback for a man who is eager to put