Earl of Pembroke is a title in the Peerage of England that was first created in the 12th century by King Stephen of England. The title, which is associated with Pembroke, Pembrokeshire in West Wales, has been recreated ten times from its original inception. Due to the number of creations of the Earldom, the original seat of Pembroke Castle is no longer attached to the title.

Philip Herbert, 4th Earl of Pembroke and 1st Earl of Montgomery, was an English courtier, nobleman, and politician active during the reigns of James I and Charles I. He married Susan de Vere, the youngest daughter of Edward de Vere, 17th Earl of Oxford, the Oxfordians' William Shakespeare. Philip and his older brother William were the 'incomparable pair of brethren' to whom the First Folio of Shakespeare's collected works was dedicated in 1623.