Calle Alemanes (Germans Street) is in Seville's old town. It owes its name to the fact that German merchants began to settle there from the Middle Ages. It was also known as Calle de las Gradas (Street of Steps) because of the steps along the facade of the Patio de los Naranjos (Orange Tree Courtyard). These steps' location between the city's old Moorish silk market (Alcaicería), Town Hall (Cabildo), and the port, made them an important commercial hub.