If someone sold chametz on the eve of Passover and then died, does the firstborn receive a double share of that chametz?

This source-based Torah study examines the question: If someone sold chametz on the eve of Passover and then died, does the firstborn receive a double share of that chametz? It follows the canonical Hebrew discussion through the weekly portion and the classical sources cited there, preserving the distinctions and review status of the original. This localized layer is for study and discovery only; it is not a practical halakhic, medical, legal, safety or pastoral ruling.