In the past, former PM Boris’ has had a complicated love life, and you may be after more information about his many children. Milo Arthur Johnson, now 26, was the first son of Boris Johnson and Marina Wheeler. Here you can get to know him a little bit better: What did he enjoy? What did he study and pursue as a career?

How many children does Boris Johnson have? 

So we know Milo is Boris’ first son, but how many children Boris Johnson actually have? It’s all a bit vague, mainly due to the fact that he had at least one child as the result of an affair. It’s believed that he has eight children; four with ex wife Marina Wheeler; two with current wife Carrie Johnson. Johnson is thought to have two more from affairs. Milo Arthur Johnson is thought to be Boris’ second born.

Milo Arthur Johnson 

Early Life

Milo was born in 1995 making him the second eldest child and the first boy of Boris Johnson and Marina Wheeler. There is very little information about Milo’s private life but it is said that he loved sports and learning.

Siblings

Milo’s siblings include Lara Lettice Johnson, who is now a writer, editor and broadcaster; Cassia Peaches Johnson who was a student editor whilst at Highgate school; and Theodore Apollo Johnson who currently studies at Cambridge University. As mentioned, Milo has two half siblings and potentially more…

Education

Education
Source: Canva
Milo attended a £27,174 a year Westminster School, where he developed a love for sports. In fact, Milo was described as a “delight to watch” and “without doubt the player of the season” in the 2011 issue of his school magazine for his football ability. After this, he studied at the London School of Oriental and African Studies which prompted him to complete a five-month internship at Esquire in the Middle East. Leading on from his cultural education, Milo is known to speak French, Russian and Arabic – very impressive!

Present Day

Present Day
Source: Boris Johnson Instagram
Milo’s parents, Marina and Boris, remained together for 25 years but split in 2018 due to Boris’ new relationship with Carrie Symonds. There is scant information on what Milo now gets up to but we can be sure he still dabbles in his love for language, sport and culture!

Cassia Peaches Johnson

Early Life  

Cassia Peaches Johnson was born in 1997, making her 26 years old in 2023. She boasts a degree at Trinity College Dublin.

Education

Cassia attended Highgate school in North London, which costs around £18,000 a year. Despite this being a gut-wrenching amount for the average person, this pales in comparison to Milo’s tuition at Westminster, where he was required to pay around £27,000 annually. During her time at school Cassia was the student editor of their alumni magazine Cholmeleian. After attending Highgate Cassia attended the prestigious Trinity College in Dublin.

Later Life

Owing to her early start in editing and journalism, it is speculated that Cassia aspires to be a writer. It is hard to find any detailed information on what she is currently spending her time doing but we can assume she has a pen in hand.

Cassia Peaches Johnson’s net worth

There’s no current information on Cassia’s net worth. However most sources draw on the fact her father, ex PM Boris Johnson is estimated to be $4 million, which is about £3.3 million.
Connor Steele
Connor Steele – University of Sussex
Topic expertise: Finance, Net worth, Culture, Student life, Accommodation, Jobs & Careers

FAQs on Milo Arthur Johnson and Cassia Peaches Johnson

Milo Arthur Johnson and Cassia Peaches Johnson are children of former UK Prime Minister Boris Johnson and his ex-wife, Marina Wheeler. Milo was born in 1995 and Cassia in 1997.

Milo attended Westminster School, excelling in sports, and later studied at the School of Oriental and African Studies (SOAS), University of London. He completed a five-month internship at Esquire Middle East and is fluent in French, Russian, and Arabic. Details about his current career remain private, but he is known for his interests in languages, sports, and culture.

Cassia attended Highgate School and later graduated from Trinity College Dublin. She was a student editor at Highgate and is believed to aspire to a career in writing or journalism, though there is little public information about her current activities.

Boris Johnson is believed to have at least eight children: four with Marina Wheeler (Lara Lettice, Milo Arthur, Cassia Peaches, and Theodore Apollo), two with his current wife Carrie Johnson, and at least two more from other relationships.

There is no public information on Cassia’s personal net worth. Most sources reference her father Boris Johnson’s net worth, which is estimated at $6–8 million (about £5–6.5 million) as of 2025.

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  • Aminah is a dedicated content expert and writer at Unifresher, bringing a unique blend of creativity and precision to her work. Her passion for crafting engaging content is complemented by a love for travelling, cooking, and exploring languages. With years spent living in cultural hubs like Barcelona, Sicily, and Rome, Aminah has gained a wealth of experiences that enrich her perspective. Now based back in her hometown of Manchester, she continues to immerse herself in the city's vibrant atmosphere. An enthusiastic Manchester United supporter, Aminah also enjoys delving into psychology and true crime in her spare time.

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