The Brentano Quartet is a string quartet founded in 1992. It is the first quartet-in-residence at Princeton University, where the members regularly teach chamber music. They have embarked on several tours in the United States. The quartet takes its name from Antonie Brentano, believed by some to be Beethoven's "Immortal Beloved." The members of the quartet are Mark Steinberg (who graduated from Juilliard), Serena Canin (violins), Misha Amory (viola), and Nina Lee (cello). They have performed all over the world.