Complex sentence: He studied in Lublin under Rabbi Shalom Shachna, who became his father-in-law; among his fellow pupils were his relative Solomon Luria (Maharshal), and Chayyim b. Bezalel, an older brother of the Maharal.
Split into simpler sentences: He studied in Lublin under Rabbi Shalom Shachna, who later became his father-in-law. Among his fellow pupils were his relative Solomon Luria (Maharshal), and Chayyim b. Bezalel, an older brother of the Maharal.