The original Pitti Palace was a much smaller affair than that we see today. Shortly after Eleonora of Toledo purchased the Pitti, Bartolomeo Ammannati, along with Niccoló Pericoli ("Tribolo"), began the work of transforming the palace and the hillside behind it. Ammannati was commissioned to enlarge the palace and create a courtyard. He redesigned the facade and added the two rectangular wings which extend towards the gardens. The courtyard is considered Ammannati's masterpiece and a good example of the Mannerist style, as is the rest of the Pitti Palace. Many festivities and ceremonies of the Medici court were performed here, including a naval battle which required the flooding of the entire area, as well as the wedding of Ferdinand I and Cristina of Lorraine in 1589. Among Ammannati's other great accomplishments are the great fountain in the hall of the Cinquecento at the Palazzo Vecchio, the design of the Ponte di S. Trinitá , the large Fountain of Neptune in the Piazza Signoria, and the vestibule of the Laurentian Library (Biblioteca Laurenziana), next to the Medici Chapel in Piazza San Lorenzo.