A concise French-language professional guide on the role of banks in the settlement of estates and successions. The work addresses the practical and legal questions that arise when a bank account, securities portfolio, loan, safe deposit box, or other financial relationship must be handled after a customer's death. It is aimed at banking professionals, legal practitioners, and others involved in succession procedures who need a clear overview of documentation, account management, asset transfer, and related obligations. The title indicates a focus on the intersection of banking operations and succession law, especially the procedures required to regularize accounts and financial holdings following a death. Published by La Revue Banque, the volume is best understood as a specialized reference guide rather than a broad treatise or narrative work.