King Charles spoke about impact of 'small creature' Prince William

King Charles gushed over the brith of Prince William, in 1982.

Upon looking at the Prince of Wales, Charles sent a special letter to his cousin, Patricia Mountbatten, to share his excitement around fatherhood.

He reportedly told her: "The arrival of our small son has been an astonishing experience and one that has meant more to me than I ever could have imagined. I am so thankful I was beside Diana's bedside the whole time because I felt as though I'd shared deeply in the process of birth and as a result was rewarded by seeing a small creature who belonged to us even though he seemed to belong to everyone else as well."

William was born on June 21, 1982.