Has a PhD in History, completed his archival traineeship at the State Archives Bremen. Was Archivist at the Hessian Main State Archives in Wiesbaden, since 2001 Director of the Hessian State Archives Marburg, since 2016 also Director of the Hessian Regional Archives. Head of the Hessian Historical Commission and member of numerous commissions and societies, lecturer at the Philipps-University Marburg and the Archives School Marburg.