Mathias D. Maternowski Obituary

With heavy hearts, we announce the death of Mathias D. Maternowski (Waukesha, Wisconsin), who passed away on October 12, 2025 at the age of 54. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.

In the quiet moments of reflection, let us honor Mathias' memory by embracing the beauty of each fleeting moment, knowing that his spirit resides in the eternal tapestry of existence, forever woven into the fabric of our hearts.

He was predeceased by: his brother Gregory. He is survived by: his siblings, Danette Karls (Jeffrey), Phillip "Phil" Maternowski (Lynn), Paul Maternowski and Andrea "Andie" Crotteau (Jeff); and his sister-in-law Kim. He is also survived by nieces, nephews, other relatives and friends.