The wedding is thought to have been an intimate gathering, with only the couple’s oldest school friends and limited family invited.
The former school friends, who have been dating since 2015, married at the singer's country estate in Suffolk, according to The Sun, with a source close to Sheeran describing the celebrations as "something entirely for them - just a tiny winter wedding."
Here’s your need-to-know on Sheeran’s childhood sweetheart and their heart-warming love story to date:
How did Ed Sheeran and Cherry Seaborn meet?
The pair both attended Thomas Mills High School in Framlingham, Suffolk, where Sheeran was in the year above Seaborn.
They are thought to have struck up a close friendship in their teens, with Sheeran reportedly having a crush on Seaborn, who had a boyfriend at the time.
When did they get together?
While Sheeran famously stayed on friends’ sofas while working hard for a big break in the music industry, Seaborn was busy studying for a degree in cell and molecular biology at Durham University.
She went on to study for a masters at Duke University (coincidentally located in Durham, North Carolina), where she was on the varsity hockey team.
Seaborn was working in America on Wall Street when she reconnected with school friend Sheeran in 2015, and the pair were soon spotted attending sports matches together.
Things appeared to be getting serious when Seaborn appeared in an Instagram post shared by Taylor Swift’s best friend Abigail Anderson from the singer’s famous Fourth of July party in 2016.
The snap showed partygoers (including an embracing Sheeran and Seaborn) posing in front of a banner that congratulated the couple on reaching their one year anniversary.
Indeed, Swift’s Independence Day extravaganzas hold a special significance for the couple, as Sheeran revealed to People last year.
“[Seaborn] worked on Wall Street in New York, and I had like six shows [in New York in 2015,” he told the magazine. “It was around then, and we reconnected.
“I went on tour again, and then I went to Taylor’s 4th of July party. I was texting [Seaborn] and she was like, ‘I’m in Rhode Island at a 4th of July party,’ and I was like, ‘So am I.’
“I kinda said to Taylor, ‘Can I invite one of my old schoolmates?’ The rest is history.”
The pair have since moved back to England, where Seaborn works in risk advisory for financial services firm Deloitte, and are thought to divide their time between London and Suffolk, where the singer owns several homes.
When did the couple get engaged?
Sheeran confirmed news of his engaged in January 2018, when he shared a sweet Instagram photo of himself embracing his girlfriend with the caption: “Got myself a fiancé [sic] just before new year.
“We are very happy and in love, and our cats are chuffed as well xx.”
Shortly after, the singer told an Australian radio station that he and his girlfriend had started "wearing rings" so that "nobody will know when we have got married."
How old is Cherry Seaborn?
Seaborn is 26 years old, while Sheeran recently turned 28 on February 17.