Meghan went to Catholic School in America but is thought to have made a decision to be baptised out of respect for the Queen - who is the head of the Church of England.
After her baptism, she received confirmation which will allow her to get Holy Communion with her future husband.
Remains to be seen whether this marriage will attract as many curious than that of prince William and Kate Middleton on 29 April 2011 in front of a television: at the time, out of information chains, over nine million people, according to Médiamétrie, looked at their wedding in France.
It was not clear if either Markle's mother Doria Ragland or her father Thomas Markle travelled for the service. She was raised Protestant, attended the Catholic Immaculate Heart girls-only private high school and was married to a Jewish man before they divorced.
With just two months to go until Meghan Markle and Prince Harry say "I do" at St George's Chapel, Windsor Castle, the former Suits star's cast mates have finally found out whether they bagged an invite to the star's big day.
Kim Kardashian's 30 million a year dwarfs Kanye West's 12 million a year, on the breadline, they are.
Princess Diana will likely approve Meghan Markle for son, Prince Harry.
The Chapel Royal choir - which is the oldest continuous musical organisation in the world and features six Gentlemen-in-Ordinary and ten Children of the Chapel - the oldest continuous musical organisation in the world - performed during the service.
Prince Charles will be the next Head of the Church of England when he ascends the throne. Kensington Palace declined to comment.