Britain's King Charles arrives for Easter Sunday church service 

The outing marks his most significant public appearance since he was diagnosed with cancer

Britain's King Charles and Queen Camilla arrive to attend the Easter Mattins Service at St George's Chapel at Windsor Castle in Berkshire. 

Britain's King Charles smiled and waved at members of the public as he arrived for the Easter Sunday service at Windsor Castle, in his most significant public appearance since he was diagnosed with cancer.

Charles, 75, joined the Queen and other members of the royal family for the annual Easter Mattins Service at St George’s Chapel on Sunday.