a man married a woman, then divorced her, and she later married another man. Is it permissible for the first man's sons to marry the second man's daughters of the same woman,
or are they considered Mahrams (unmarriageable relatives) for her?
If a man marries a woman, then divorces her and she marries another man, it is permissible for the first man's sons from another woman to marry the second man's daughters. However, if they are the sons of the same woman, it is impermissible for them to marry, as in this case they are maternal half-siblings. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.