Mary Sidney, Countess of Pembroke is a biographical book written by Frances Berkeley Young in 1912. The book details the life of Mary Sidney, who was the sister of Sir Philip Sidney, a famous poet and courtier in Elizabethan England. Mary was also a writer and patron of the arts, and played a significant role in the literary and cultural circles of her time. The book explores her upbringing, education, and marriage to Henry Herbert, Earl of Pembroke,...