It was business as usual for the King, who focused on duties amid a challenging year during which both he and the Princess of Wales faced cancer diagnoses

The British monarch turns 76 today, November 14, and to mark the occasion, his royal family sent him well wishes via social media (and presumably in real life, as well).

King Charles was wished a happy birthday by a historian when he was still Prince of Wales, but his unusual reply raised eyebrows,

King Charles is 76! The Prince and Princess of Wales celebrated His Majesty's birthday on Thursday, Nov. 14, with a photo of the monarch sporting sunglasses and a garland. The image was taken last month during the King and Queen Camilla ' s visit to Samoa.

On Thursday, the Prince and Princess of Wales led the birthday tributes to Charles on social media with a cheeky photo posted to their Instagram Story. "Wishing a very Happy Birth

There are no special events organised for King's birthday and he's spending his special day doing his regular. However, his birthday will be marked by ceremonial gun salutes -- a tradition for the monarch's birthday.

Gun salutes will be fired in Green Park by The King’s Troop Royal Horse Artillery and at the Tower of London by the Honourable Artillery Company as part of the military’s traditional celebrations

The royal family is celebrating the monarch's birthday on Thursday, Nov. 14 after a tumultuous year Kate Middleton and Prince William are celebrating King Charles' birthday! The King turned 76 on Thursday,

Birthday wishes for the King from the royal family as Charles turns 76 - He is carrying out official duties in south London on Thursday by opening the first two Coronation Food Hubs.