Joseph ibn Migash

Joseph ben Meir HaLevi ibn Migash (also rendered Yosef ibn Meir Ha-Levi ibn Migash, José ben Meir ibn Megas, or simply Joseph ibn Migash; Hebrew: יוסף בן מאיר הלוי אבן מיגאש; early 1077 – c. 1141) was a prominent rabbi, halakhic decisor (posek), and head of the yeshiva (rosh yeshiva) in Lucena, in al-Andalus (modern-day Spain). He is also known by the acronym Ri Migash (ר"י מיגאש), standing for Rabbi Yosef Migash.