Bismillah


Al-jawab billahi at-taufeeq (the answer with Allah's guidance)



Yes, most of your mother's Mahrams will be your Mahrams as well, like mother's brothers (your uncles), mother's uncles (your granduncles etc), mother's sons (your brothers), mother's grandsons, great grandsons etc, (your nephews, grandnephews etc), mother's father (your grandfather, great grandfather etc,) except your mother's nephews and mother's brother-in-law.



And Only Allah Ta'ala Knows Best.