Dennis Eugene Leonard, 67, of Belvidere, IL, passed away on Friday, September 2, 2022, at his home. He was born on September 27, 1954, in Monroe, WI to the late Paul N. and Lillian (Baehler) Leonard. Denny was an avid Green Bay Packers fan, but most of all loved being with his family. Denny is loved and will be deeply missed by his brothers, Greg (Debbie), Steve (Mary), Bob (Sue); sisters, Beverly (Ron), Barb, Pat (Paul Garrett); numerous nieces and nephews. He was preceded in death by his parents, Paul and Lillian; step mother, Ellen. There will be a visitation on Thursday, September 8, 2022, from 5:00 P.M. to 8:00 P.M. at Belvidere Funeral Home & Cremation Service in Belvidere, IL. A rosary will begin at 7:30 P.M. Mass of Christian Burial will be held on Friday, September 9, 2022, beginning at 11:00 A.M. at St. James Catholic Church in Belvidere, IL. Interment will take place in Belvidere Cemetery. Memorials can be made to the family.