Who is Billy Seidl? Meet Brielle Biermann’s fiancé

Brielle Biermann is engaged to Billy Seidl.

The “Don’t Be Tardy” alum shared a series of photos via Instagram in February 2024 of her Massachusetts-born beau getting down on one knee and popping the question after one year of dating.

“Forever with you,” she captioned the post.

Here’s everything you need to know about Seidl.

He’s a professional baseball player

Here’s everyting you need to know about Brielle Biermann’s fiancé, Billy Seidl. Billy Seidl/Instagram

He was drafted to the Chicago White Sox in the summer of 2022. bseidl21/Instagram

The Chicago White Sox signed Seidl to their organization as a pitcher in July 2022 after he played college baseball at Duke University, according to his MLB roster.

By August 2022, Seidl was assigned to the Kannapolis Cannon Ballers –– a Minor League Baseball team and the White Sox’s Single-A affiliate.

While he may not be on the official roster for the Chicago team, it appears he is participating in spring training, as he and Biermann got engaged where the team practices in Arizona.

He was a star pitcher at Duke

Seidl played baseball at Duke University until 2022. bseidl21/Instagram

Seidl played baseball at Duke University in Durham, NC, from 2019 through 2022, according to his Instagram and Duke’s roster.

He made more than a dozen appearances in each season and started in many of them. In 2021, Seidl helped the Blue Devils win the ACC baseball championship –– the school’s first since 1961.

Seidl celebrated the achievement by sharing several Instagram photos of himself kissing the trophy and celebrating with his teammates and family members.

In 2021, Seidl helped the Blue Devils win the ACC baseball championship. bseidl21/Instagram

“Great idea, @dukebase,” he captioned the post in June 2021.

His college baseball career seems to have played a major role in his life, as he shared several memories of his time with the team over the years.

He also played football

Seidl also played varsity football at his all-boys school. bseidl21/Instagram

He attended St. Sebastian’s School outside of Boston. bseidl21/Instagram

Seidl was a two-sport athlete when he attended an all-boys independent Catholic high school outside of Boston.

While at St. Sebastian’s School, he played both varsity baseball and football. Seidl pitched for his baseball team and was the quarterback for his football team, according to Mass Prep Stars.

He was also a member of the National Honor Society with academic honors every semester.

He’s a family guy

Seidl appears to have close relationships with his parents and three siblings. bseidl21/Instagram

When Seidl isn’t spending his time perfecting his pitching skills, he surrounds himself with family.

Seidl, who was born in November 1999, has two brothers, Tommy, who plays baseball at Harvard University, and Philip, and one sister, Shannon. Their parents are Randall and Janet Seidl, per Billy’s Duke bio.

He has posted photos with all of his family members several times over the years.

Seidl has two brothers, Tommy and Philip, and one sister, Shannon. bseidl21/Instagram

In one October 2022 post, Billy stood behind his mom and sister while wrapping his arms around them.

He also shared a snap of all five Seidels posing together in 2019, including his brother Tommy in the ACC Championship photo dump.

He announced his relationship with Biermann in 2023

Seidl went Instagram-official with the former Bravolebrity in April 2023. Billy Seidl/Instagram

He has since shared several sweet snaps with Biermann. bseidl21/Instagram

It’s not totally clear how Seidl and Biermann met since he grew up in the Boston area and went to school in North Carolina while she lived outside of Atlanta for most of her life.

However, by April 2023, Seidl made his relationship with Biermann public when he posted a sweet snap of her sitting on his lap.

“Whole lotta Rizz,” he captioned the photo.

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Since then, he has posted several photos with the former Bravolebrity –– including one of them in Cabo San Lucas and another of them attending a wedding.

Biermann’s mom, Kim Zolciak, seems to support the relationship, as she has left various comments on Siedl’s photos with her daughter.

The “Don’t Be Tardy” alum announced their engagement in February 2024. Billy Seidl/Instagram

Both of their families have shown their support for the couple. Brielle Biermann/Instagram

The “Real Housewives of Atlanta” alum also shared their engagement photos on Instagram and gushed, “I’m so happy for @briellebiermann @bseidl21 nothing makes me happier than seeing my kids happy! It’s the best feeling EVER!! Love you both to the moon and back and look forward to alllll the years to come.”

Biermann, for her part, posted with Seidl for the first time on her account when announcing their engagement.

Billy’s sister, Shannon, also showed her support by commenting under the post, “27 heatin on up!!!!! Love you both yay!!!!!!!!!!! Sista sista.”

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