King Charles greets spectators at Easter service, in first major public outing since his cancer diagnosis

King Charles III attended an Easter service on Sunday at Windsor Castle, marking his most noteworthy public appearance since being diagnosed last month with an undisclosed form of cancer. 

The visit could be serving as a comforting precursor to the king's eventual planned return to the public-facing duties from which he has been largely absent in the wake of his diagnosis and treatment. 

The monarch offered a cheery wave to spectators as he walked into St. George's Chapel for a service expected to last about an hour. A member of the public shouted "Happy Easter," with Charles responding, "And to you." He rejoined the crowd after the service ended, speaking to people who had gathered there and shaking their hands, the BBC, a CBS News parter network, reported.