Britain's Prince Harry and Meghan Markle kiss as they ride in a carriage down the Long Walk after their wedding ceremony of Prince Harry and Meghan Markle at St. George's Chapel. Photo / AP
Meghan Markle and Prince Harry are officially married.
The couple emerged from St George's Chapel as newlyweds and kissed in front of the cheering crowd.
The couple are now riding through Windsor's narrow cobbled streets - lined with royal fans - in the Ascot Landau carriage, escorted by the Household Cavalry Mounted Regiment.
Earlier, the groom looking adoringly at his bride as she walked up the aisle with Prince Charles.
Meghan arrived in a white gown designed by Clare Waight Keller for Givenchy.
Her veil was held in place by Queen Mary's diamond bandeau tiara, made in 1932 and loaned to her by The Queen.
The lace creation represented the "distinctive flora of each Commonwealth country united in one spectacular floral composition" to honor the new royal's desire to have all 53 countries with her on her big day.
She had travelled to Windsor Castle with mother Doria Ragland in a black Rolls Royce from Cliveden House Hotel, where she stayed the night before the wedding.
The page boys and bridesmaids entered St George's Chapel ahead of Meghan.
They included the Duke and Duchess of Cambridge's two oldest children Prince George and Princess Charlotte, who arrived with their mother.
The groom and his best man, brother Prince William, dressed in uniform, were the first royals to arrive at the castle.
The Queen, dressed in a yellow coat with a purple floral dress underneath, Prince Phillip, and Prince Harry's father Prince Charles and wife Camilla, arrived soon after.
The much-anticipated wedding between the sixth in line to the throne and the American actress started at 11pm (NZT).
The couple's 600 official wedding guests, including several A-listers, were seated early.
Former talkshow host Oprah Winfrey is there, as is Victoria and David Beckham, George Clooney and wife Amal, British actor Ildris Elba with fiance Sabrina Dhowre, British singer James Blunt and Sofia Wellesley, Sir Elton John, Serena Williams and Harry's ex loves Chelsy Davy and Cressida Bonas.
Meghan's former Suits costars were also spotted at the royal wedding, alongside the Duchess of Cambridge's parents, sister Pippa, brother James, and the late Diana's brother Charles Spencer, 9th Earl Spencer, and daughter Lady Kitty Spencer.
Pippa is pregnant with her first child but didn't adopt to wear maternity wear.
The sister of the Duchess of Cambridge, who is thought to be around four months pregnant showed just a hint of her baby bump this morning as she set off from London this morning.
Pippa, 34, wore a pretty £495 Hepburn silk floral dress from brand of the moment, The Fold which features a close-fitting bodice and pleated skirt.
Earlier, the 2640 members of the public who have been invited into the grounds of the castle arrived, including representatives of Harry's charities and 1200 people who have served their communities.
The service was conducted by Reverend David Conner and officiated by Archbishop of Canterbury Justin Welby, who baptised Meghan earlier this year.
She was raised a Catholic but was baptised again prior to her wedding.
It has been a turbulent week in the lead-up to the couple's big day, with the announcement Meghan's father Thomas would not be attending the wedding.
Her mother Doria Ragland arrived in the UK on Thursday, and it was announced soon after that Prince Charles will walk Meghan part way down the aisle.
Kensington Palace said in a statement: "Ms Meghan Markle has asked His Royal Highness The Prince of Wales to accompany her down the aisle of the Quire of St George's Chapel on her Wedding Day.
"The Prince of Wales is pleased to be able to welcome Ms Markle to The Royal Family in this way."
Megha made the bold choice to complete part of the bridal procession alone and will be joined by Prince Charles as she makes her way to her groom.
The newlyweds will leave the chapel to the strains of an allegro from Symphony No. 1 by 18th-century composer William Boyce, and the gospel sounds of Amen/This Little Light of Mine.
The Church of England doesn't allow couples to write their own wedding vows — so both Harry and Meghan will have to stick to the script in front of them.
During the service there were elements of both Harry and Meghan - the traditional pomp and spectacle of royalty mixed with American culture.
Hymns and psalms intermingled with a gospel choir who performed a moving rendition of Stand By Me during the service and This Little Light of Mine as the couple exited the chapel.
American Bishop Michael Curry almost stole the show at one point, with a long and powerful address during which he spoke passionately about the power of love and quoted Martin Luther King Jr.
"There's power in love, don't underestimate it," he said.
His at times long winded sermon drew laughs, then looks of shock and boredom from the guests - but Harry and Meghan only had eyes for each other during it all.
The Church of England doesn't allow couples to write their own wedding vows so Harry and Meghan stuck to a script.
"I Harry, take you, Meghan, to be my wife," he began.
"To have and to hold from, this day forward; for better, for worse, for richer, for poorer, in sickness and in health, to love and to cherish, till death us do part; according to God's holy law. In the presence of God I make this vow."
Meghan then made her vows - following in the footsteps of Harry's later mother Diana and the Duchess by choosing to omit the traditional promise to "obey" her husband.
Diana was also honoured at the ceremony, with guests singing the hymn Guide Me, O Thou Great Redeemer which was played at her funeral in 1997.
The couple exchanged rings, the formalities were completed and they were pronounced married.