Lady Davina Windsor, who is 20th in line to the throne, has married a builder and former sheep shearer from New Zealand after a four-year romance.
Lady Davina was accompanied by her father the Duke of Gloucester
Gary Lewis met the 26-year-old daughter of the Duke and Duchess of Gloucester on the island of Bali, in Indonesia, in 2000.
Mr Lewis, known to friends as "Gazza", is a keen surfer. He becomes the first Maori to marry into the British Royal Family.
The wedding was at Kensington Palace.
Mr Lewis, 33, said his future in-laws were "no different to anyone else".
He comes from Gisborne on the east coast of New Zealand's North Island, and has an 11-year-old son from a former relationship.
Mr Lewis' father, Larry, was a champion shearer in New Zealand in the 1980s and his mother, Viki Carr, worked as a maid.
The groom, Gary Lewis, 33, is a former sheep shearer from New Zealand
He is described as a "renovator" by the New Zealand Herald.
Lady Davina, whose father is the Queen's cousin, attended Kensington Preparatory School and later St George's in Ascot.
She keeps a low profile and does not carry out any official royal duties.
A spokeswoman for the royal household said the couple wanted the wedding to be low-key.
She said: "The Queen will not be attending. They are having a quiet, private wedding."