Rabbi Yitzchak Ben Walid, the Rabbi of Tetouan, was one of the most glorious personalities among the Gaonim of Morocco
Rabbi Shmuel Dovid Ungar (23 November 1885 – 9 February 1945), also known as Rabbi Samuel David Ungar, was the rabbi of the Slovakian city of Nitra, and dean of the last surviving yeshiva in occupied Europe during World War II
Kabbalist, son of Rabbi Yehuda Tzvi Brandwein
Rabbi Gershon Ashkenazi studied under Joel Sirkis, the "Bach". He was also a talmid of the Maharam Shif, and the Rabbi Heschel of Kraków.