What are some famous pieces by William Byrd?

William Byrd, a prominent English composer of the Renaissance, is known for several famous pieces, including his motets such as "Ave Verum Corpus" and "O Lord, Make Thy Servant Elizabeth." He also made significant contributions to the development of keyboard music with works like "The Fitzwilliam Virginal Book," which showcases his intricate keyboard compositions. Additionally, his anthems, such as "Sing Joyfully" and "The Earl of Southampton's Pavane," highlight his skill in choral writing. Byrd's music is celebrated for its rich harmonies and expressive depth.