Ruling on uncovering the face before the husband of the maternal aunt and the husband of the sister

Question:
In the last of this questioner's questions, she asks: Is it permissible for a woman to sit with her face uncovered in the presence of the husband of the maternal aunt, the maternal uncle of the mother, and the husband of the sister?

The Shaykh:
She is not allowed to uncover her face in the presence of the husband of the sister, nor in the presence of the husband of the maternal aunt. However, there is no harm in doing so in the presence of the husband of the mother, or the husband of the grandmother, because he is a mahram (a relative one may not marry) to the husband of the mother, and the husband of the grandmother is a mahram if he has consummated the marriage with her. As for the maternal uncle of the mother, he is her maternal uncle; your mother's maternal uncle is your maternal uncle. If it is the maternal uncle of her mother, the maternal uncle of her grandmother, or the maternal uncle of her father, he is her maternal uncle and a mahram to her. Likewise, her mother's paternal uncle and her father's paternal uncle are her paternal uncles. Yes.

The presenter: May Allah reward you.