The Fitzwilliam Virginal Book is a primary source of keyboard music from the late Elizabethan and early Jacobean periods in England, i.e., the late Renaissance and very early Baroque. It takes its name from Viscount Fitzwilliam who bequeathed this manuscript collection to Cambridge University in 1816. It is now deposited in the Fitzwilliam Museum at Cambridge.Although the word virginals or virginal (the plural form does not necessarily denote more than one instrument) is used today to refer to a specific instrument similar to a small, portable harpsichord, at the time of the book the word was used to denote virtually any keyboard instrument including the organ.