What is the fate of a martyr's salary and entitlements after his martyrdom if his pregnant wife marries another man, or if she leaves the marital home and moves to her family's home? Do they remain hers and her infant son's?

Your brother's wife has a right to inherit from him. Her right is not forfeited if she remarries, or moves to her father's house, or dies. She receives one-fourth if your brother has no lineal descendant, and one-eighth if he has a lineal descendant. The fetus has a share in the inheritance if born alive, and its birth is awaited to determine its gender.