Formerly of East Malling, Mr Pelly is thought to have asked the princes to be ushers at his wedding to Holiday Inn heiress Lizzy Wilson in 2014.
The little prince got the usual royal treatment with a whopping six godparents and a whole host of high profile royal guests in attendance including aunt and uncle the Duke and Duchess of Sussex, all of his mum Kate's family as well as Prince Charles and Camilla, Duchess of Cornwall.
It was also revealed Monday that the Duke and Duchess had chosen two hymns, two lessons and two anthems for the christening.
The monarch, 92, and her 97-year-old husband Prince Philip had attended the christenings of Louis' older siblings Prince George and Princess Charlotte. Kate has been on maternity leave since the birth of Prince Louis, who was born on April 22, 2018.
Britain's Princess Charlotte of Cambridge and Britain's Prince George of Cambridge hold hands with their father, Britain's Prince William, Duke of Cambridge, as Britain's Prince Louis of Cambridge is carried by his mother, Britain's Catherine, Duchess of Cambridge.
George Clooney reported hurt in motorcycle crash in Italy
Calls and emails to Clooney's spokesman in regards to the accident weren't immediately returned, according to Associated Press. According to the site, George was said to be hit by a vehicle which suddenly changed direction at a spot close to a hotel.
Louis wore a handmade replica of the Royal Christening Robe, made by Angela Kelly, who is a dressmaker to the Queen.
"Louis" older brother Prince George was also baptised in October 2013 at the Chapel Royal at St James's Palace.
Louis' christening today marks the first time we've seen all five Cambridges out in public together, but it isn't the first time the infant has been seen with Princess Charlotte.
Mrs Carter is a schoolfriend of the Duchess, while Miss Middleton, a solicitor, is her cousin.
Harry Aubrey-Fletcher: He went to Ludgrove School and Eton with William and his father is the Lord Lieutenant of Buckinghamshire.
William and Kate were to host a private tea afterwards. As the palace further explains, "the original gown was subsequently worn for all Royal christenings, including The Queen, her children and her grandchildren".