But Harry and Meghan will extend some special invitations beyond close friends and relatives, with their decision to include members of the British public in their wedding.
In a series of tweets today, the royal household noted that the couple asked Lord Lieutenants to invite 1,200 people to join the celebrations, which included "young people who have shown strong leadership, and those who have served their communities".
That said, British Prime Minister Theresa May will not be able to grace the event at Windsor Castle as well.
Commonwealth Games: Pugilists Solanki, Kaushik book last eight spots
Sathiyan then teamed up with Harmeet Desai to beat Abiodun and Olajide Omotayo 11-8, 11-5, 11-3 to complete a memorable win. They beat Wales 4-3 in the second game and finally on Tuesday, they beat Malaysia to qualify for the semi-final.
CNN understands that some world leaders may be invited on the basis of their personal relationships with Harry and Meghan.
Harry said past year that he didn't know whether the Obamas would be there as he tied the knot with Markle.
Amelia Thompson, a 12-year-old injured during a bombing at a 2017 Ariana Grande concert in Manchester, will also be in attendance for the royal wedding.
Now she has made a decision to give her other ticket to grandmother Sharon Goodman, whose 15-year-old granddaughter Olivia Campbell-Hardy died in the attack.
- Philip Gillespie, 30, from Northern Ireland, who lost his right leg in an IED incident in Afghanistan and now raises funds and awareness for a soldiers' charity.
The foundation works as a "trusted network" in Mumbai's urban slums, empowering its staff through training in women's health, English, Maths, and life skills such as self-defence.