Your invitation may have got lost in the post, but with the wedding of the year fast approaching, here’s what we know about Prince Harry and Meghan Markle’s royal nuptials.
When and where is it?
The couple will wed on Saturday 19 May at 12:00 BST at St George’s Chapel in Windsor.
The chapel – where Prince Harry was christened – holds about 800 people.
Ms Markle was baptised and confirmed at the Chapel Royal on 6 March, at the Queen’s request.
At 13:00 the newlyweds will travel through Windsor, Berkshire, in a carriage. The couple have chosen the Ascot Landau carriage, which is used in official and ceremonial state events.
The carriage will leave Castle Hill, travel through Windsor and then it will proceed up the Long Walk all the way back to St George’s Hall by Windsor Castle.
Invitations have been sent to 600 guests, with a further 200 invited to the couple’s evening reception – including the Spice Girls.
Ms Markle’s father, Thomas Markle, and mother, Doria Ragland, will arrive in the UK the week before the wedding to meet senior royals including the Queen, the Duke of Edinburgh and the Duke and Duchess of Cambridge.
On the day, Ms Markle will arrive at the chapel by car with her mother, Doria Ragland. She will be walked down the aisle by her father, Thomas Markle.
From Prince Harry’s side of the family, Kensington Palace confirmed the Queen’s husband, the Duke of Edinburgh, will attend – despite recently recovering from a hip replacement.
But Prince Harry’s newest nephew, Prince Louis, who will be three-weeks-old at the time, will not be there.
Prime Minister Theresa May and Labour leader Jeremy Corbyn are not on the guest list after it was decided there would not be an “official list of political leaders”.
Kensington Palace said that decision, which means US President Donald Trump will not attend, was taken in consultation with the government and reflects the fact Prince Harry is only sixth in line to the throne.
It has also been confirmed that Barack and Michelle Obama, who are friends of the prince, have not received an invitation.
More than 1,000 members of the public have been invited to the grounds of Windsor Castle and will be able to watch the arrival and departure of the bride and groom.
Twelve-year-old Amelia Thompson, who was injured in the Manchester Arena attack, is among the 1,200 members of the public who will attend.
How will they get there?
While some of the formal guests may have fancier travel arrangements, many spectators will be looking to get to Windsor on public transport.
But be warned – rail bosses says it will be “extremely busy” as 10,000 people are expected to descend on the town.
Queuing systems will be introduced at several stations – most likely London Waterloo, Slough, Staines and the two stations in Windsor – to avoid platforms becoming overcrowded.
Services between Windsor and Slough will run every 20 minutes, with trains increased from two carriages to four – the maximum that can operate on the local line.
South Western Railway will double its direct Windsor services from London Waterloo to four per hour and use 10-carriage trains.
Make sure you get there early though – Thames Valley Police may order trains not to stop at Windsor if visitor numbers become a safety issue, and the wedding route could be closed off to latecomers.
Passengers are also being asked to keep baggage to a minimum as security checks on excess luggage could delay journeys.
People planning to travel by car are being warned by the Royal Borough of Windsor and Maidenhead to book parking in advance, as spaces are limited.
Motorists should also be aware of road closures along the procession route, starting at 22:00 BST on Friday May 18.
What are people likely to wear?
The dress code listed on the royal invitation requests a “morning suit or lounge suit” for men, and a “day dress with hat” for women.
That means shirts, suits and ties with the possibility of top hats and waistcoats for men. Women will be expected to opt for knee-length dresses, with hat choices similar to those found at Royal Ascot.
The details of Ms Markle’s wedding dress remain a mystery.
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Who are the bridesmaids?
Ms Markle will not have a maid of honour and all of her bridesmaids and pageboys will be children, Kensington Palace has said.
The palace’s communications secretary, Jason Knauf, said Ms Markle “has a very close-knit group of friends and she did not want to choose one over the other”.
He added: “They’re all going to be there in Windsor with her, in the days before in London. She’s very pleased to have their support on the day.”
Who is the best man?
As expected, Prince Harry has asked his brother, Prince William, to be his best man.
Prince Harry was the Duke of Cambridge’s best man at his wedding to Kate Middleton in 2011.
Kensington Palace said Prince William is “honoured to have been asked” and is looking forward to supporting his brother.
Who will lead the service?
The Archbishop of Canterbury, Justin Welby, will marry the prince and Ms Markle.
The Rt Rev David Conner, Dean of Windsor, will conduct the service at St George’s Chapel.
Meanwhile, an American pastor will give the address – the Most Reverend Michael Curry is the presiding bishop of the Episcopal Church, a US branch of the Church of England.
Following the service, a carriage procession will travel along a route including Castle Hill, High Street, Sheet Street, Kings Road, Albert Road, Long Walk and back to Windsor Castle.
What music will they have?
The couple have chosen a selection of choirs, soloists, and musicians to perform at their wedding.
Kensington Palace has announced these will include the Choir of St George’s Chapel, 19-year-old cellist Sheku Kanneh-Mason who won the 2016 BBC’s Young Musician, and gospel group Karen Gibson and The Kingdom Choir.
An orchestra – fronted by Welsh soprano Elin Manahan Thomas – will also perform. She will be accompanied by trumpet player David Blackadder, organ player Luke Bond and State Trumpeters from the Band of the Household Cavalry.
What do we know about the reception?
All 600 guests will attend a lunchtime reception at St George’s Hall, which is being given by Her Majesty The Queen.
Ms Markle is reportedly planning to break with the tradition for royal brides by making a speech.
Later in the evening, the newlyweds will celebrate with 200 guests at a private reception less than a mile from Windsor Castle at Frogmore House, hosted by Prince Charles.
The 17th Century country house and gardens – a former home to numerous royals throughout history – was the back drop for the pair’s engagement photos.
The Royal Family will pay for the wedding, including the service, music, flowers and reception.
What about the wedding cake?
Prince Harry and Meghan Markle have chosen an organic lemon and elderflower cake for their big day.
In keeping with transatlantic nature of the occasion, the couple have enlisted Californian pastry chef and food writer Claire Ptak, owner of the Violet Bakery in east London, to bake the cake.
White garden roses, foxgloves and peonies – Ms Markle’s favourite flower – will surround the couple on their wedding day.
London-based florist Philippa Craddock has been chosen to create the floral displays for St George’s Chapel and St George’s Hall and locally sourced foliage will be used.
Soon after the couple started dating, Ms Markle posted a picture of a bouquet of pink and white peonies on her now-deleted Instagram and on another picture of peonies she said the flower made her “endlessly happy”.
Alexi Lubomirski will be the official wedding photographer.
He took the photographs to mark the engagement of Prince Harry and Ms Markle and says he is honoured to have the opportunity to capture the “next chapter in this wonderful love story”.
Mr Lubomirski, who was born in the UK but lives in New York, is known for his fashion magazine images of Beyonce, Gwyneth Paltrow, Julia Roberts and Scarlett Johansson.
And the after-party?
A statement from Kensington Palace said Ms Markle and Prince Harry wanted “members of the public to feel part of the celebrations too”.
Pubs and bars across England and Wales will be allowed to stay open later than usual – serving until 1am on the morning of the wedding day, and again after the couple are married.
Where is the honeymoon?
The date and location of the honeymoon have not been released yet – but Kensington Palace said it will not start immediately.
They will carry out their first royal engagement as a married couple in the week after the wedding.
Any street parties?
As with previous royal weddings, communities will be holding street parties to join in on the celebrations.
Hundreds of street party applications have been made to councils so far, the government said.
About 60 applications have been made in Bromley, south east London, 54 in Richmond, west London, and 12 in Reading, Berkshire, according to the Ministry of Housing, Communities and Local Government.
In Windsor, viewing areas will be created along the procession route. There will be live entertainment in the town centre and it will be decorated with bunting and banners.
Food stalls and big screens showing live footage of the wedding will be shown on the Long Walk and in Alexandra Gardens in Windsor.
What souvenirs are on offer?
You may not be able to get your hands on the official wedding favours, but that needn’t stop people from getting a souvenir to remember the day – especially if you like china.
The official range of commemorative fine-bone china is by the Royal Collection Trust and includes mugs, a tankard and a plate.
Meanwhile, Stoke-on-Trent pottery firm Halcyon Days is manufacturing a range of mugs, plates and teapots.
The firm is one of 14 to hold royal warrants, a certificate for providing goods and services to the royal households.