The original Puerta de Bisagra was created by the Moors during the 10th century. This Renaissance version of the New Bisagra Gate was designed by Alonso de Covarrubias in 1559. He was the most prolific architect in Toledo during the 16th century. Among his works are the Toledo Cathedral, Alcázar and the Tevera Hospital. Puerta de Bisagra Nueva is one of the city’s most recognized structures because of the twin towers capped with a green and white checkerboard motif. This city view bears the coat of arms of Charles I. Also known as Charles V, he was king of the Spanish Empire and a Holy Roman Emperor during the first half of the 16th century.