Mary "Isabelle" Brandenburg, age 84 of South Lebanon, Ohio passed away peacefully on Wednesday, November 12, 2025, at Embassy of Lebanon. Isabelle was born November 26, 1940, in Potosi, Wisconsin, the daughter of Ambrose and Grace Seng. She was a dedicated homemaker who's greatest joys was in caring for her family. She loved to spend time reading, and taking walks with her loving husband Larry.

Isabelle was preceded in death by her parents and seven of her siblings. Isabelle leaves behind her loving husband Larry Brandenburg, sons Greg (Cynthia) Brandenburg and Brian (Jana) Brandenburg, daughter Cindy (Bill) Main, sisters Ann and Sharon, grandson Jason, great-granddaughter Livvy, as well as many other family members and friends.

A graveside service will be held for Isabelle on Tuesday, November 18, 2025, at Deerfield Cemetery in South Lebanon with Pastor Steve Taylor officiating.