Simon Cowell's Ups & Downs with Siblings - One of His Brothers Did Not Get Invite to His Wedding

"American Idol," "The X Factor," and "America's Got Talent" creator Simon Cowell's professional life is incredibly successful, but his relationship with his five siblings hasn't always been the best.

Music Mogul Simon Cowell is well known for his harsh, uncompromising criticism and incredible ability to foster musical talent. Recently his engagement to long-time love and mother of his son Eric, Lauren Silverman, has brought Simon's family history to the foreground.

The couple became engaged on December 24, 2021, and since then, the wedding has become the focus of the fans' attention. Sadly, Simon's beloved mother has passed away and won't be able to attend the ceremony she longed for. Still, Simon Cowell has five siblings, even though their relationship hasn't always been warm.

Simon Cowell was born in October 1959 in London to Julie Brett, a ballet dancer, and to Eric Cowell, whose interests ranged from property development to the music industry. Eric and Julie shared two children: Simon and his younger brother Nicholas. Simon named his son Eric after his dad.

From his father's first two marriages, Simon has three half-brothers, John Cowell, Tony Cowell, and Michael Cowell, and a half-sister, June Cowell. It has been said that they have a younger sister, Lindsay Elizabeth Cowell, but the relationship has not been officially confirmed.

While Simon followed in his dad's footsteps in the music industry, his younger brother Nicholas Cowell became an extremely successful property developer. He started at 17 as an office boy and learned the business from the ground up.

In 2004, Nicholas was involved in a TV series called "The Block," in which couples compete to create the best decor on the same limited budget in the same block of apartments. Nicholas was one of the hosts, but the show didn't turn out as successful as he had hoped.

Michael and the music mogul were estranged for years over a falling out back in 1993, and it was to last for 17 years.

It was alleged that the brothers had a falling out sometime in the past and hardly spoke for years. There have been rumors that Simon's half-siblings are invited to Simon's wedding but that Nicholas and his family are excluded from the guest list.

June Cowell Was a Child Star

Simon's oldest sister is actress June Cowell. Fans of vintage sci-fi classics will remember her as one of the eerie alien children from Wolf Rilla's 1960 movie "Village Of The Damned." Before that, she had small parts in "The Beasts of Marseilles" and "No Time for Tears." At 15, June gave up acting. She explained:

"As a child, I had seen being picked up in a Bentley and taken to a film set as incredibly exciting, but as I grew older, I began to see a seedy side of showbiz I didn't like. It seemed all about money, and it was full of leery men."

June is divorced from her Spanish husband, Francisco del Mar, and lives in Palma de Majorca. She has two daughters, Luisa and Maria. She will attend Simon's wedding at an as-yet-to-be-named date.

Tony Cowell Wrote Several Books about His Brother

Tony Cowell is nine years older than his famous younger sibling and Eric's child from his first marriage, but he loved Simon's mom, Julie, whom he considered a second mother. He confessed:

"When I first heard the news from Lauren at 4.30 am, I immediately thought of our mum, Julie. She would have been overjoyed with the news, and it's sad to think she is not here to see her son finally tie the knot."

Tony will be there, as he was when Simon received his star on the Hollywood Walk of Fame in 2018. He is a radio presenter and a writer, and he wrote "I Don't Mean To Be Rude, But..." and "The Secret Diary of Simon Cowell," both books are about Simon.

Tony adores his younger brother and reveals that being vain and ambitious is a Cowell family trait. Nevertheless, Simon never wanted to be on TV and was pushed into it. Tony has a grown-up son, Luke, and revealed that fatherhood transformed his once rebellious and pleasure-loving brother's life.

Michael and Simon Cowell Reunited after 17 Years

Michael Cowell is the oldest of the Cowell boys and is 13 years older than Simon. Michael and the music mogul were estranged for years over a falling out back in 1993, and it was to last for 17 years. Michael recalled they both fancied the same girl on holiday in Spain. He said:

"I doubt he actually remembered her name after three weeks, and I certainly can't even remember her name now. But I was annoyed with him when we got back to England, and we didn't speak."

Michael once wanted to be a singer, but he is now in the property business like his brother Nicholas and their father Eric, who lives in Buckinghamshire. He has two boys, James and Michael. His son Michael named his baby boy after his famous uncle Simon.

John Cowell Was Interested in Music from an Early Age

At a young age, John Cowell was determined to make it in music. He is the most musically gifted of the Cowells, and he worked with Elton John in a music shop in London, hung out with Jimi Hendrix, and visited George Harrison's house.

But John left behind his dreams of being a great guitar player like Clapton and Hendrix and dedicated himself to property development, like his father. He has his own company, Cowell Consulting. His son Jamie is now the aspiring musician in the family.