Philip Sidney, a 16th-century English courtier and poet, was renowned for his sophisticated use of parentheses in his romance Arcadia, which he left unfinished mid-sentence when he died from a battle wound in 1586 at age thirty-one. His extensive use of brackets influenced Renaissance writers and became associated with elevated, intricate expression. The article traces how his work, published posthumously in multiple versions by friends and family, showcases nearly 2,400 identical brackets across different editions.