Camilla, the Duchess of Cornwall, turned heads in a pale pink asymmetrical Anna Valentine creation and nude high heels.
As reported by Kensington Palace on Twitter, Prince Charles and Camilla were greeted by the Dean of Windsor when they arrived at the ceremony.
Prince Charles was dressed in a grey suit. Both he and Camilla waved at the crowd gathered across the street before entering the chapel.
The Duke and Duchess of Cornwall were the last to arrive before Queen Elizabeth and Prince Phillip were driven to the chapel in their Rolls Royce.
As per Royal protocol, all guests are expected to arrive before Queen Elizabeth makes her appearance.
The Royal couple entered through the Gailee Porch, which is the original entrance to the chapel and is also known as the West Door.
Markle's father would have walked the 36-year-old former actress down the aisle but couldn't attend the ceremony due to a health crisis he suffered on Thursday.
He required surgery and doctors implanted stents in the coronary blood vessels. To open coronary arteries and decrease the chances of it clogging again.
Markle released a statement wishing her father the best for his recovery, and in his absence, Prince Charles walked the glowing bride down the aisle.