The Porta Camollia bears the famous and characteristic Sienese greeting to all that enter: _Cor magis tibi Sena pandit_, "Siena opens to thee her heart more than her gate." When Pius II., on January 31st, 1460, returned to Siena from the fruitless congress at Mantua, he passed through this gate and found all the streets as far as the Duomo gorgeously decorated. Inside the gate there was a structure to look like a Paradise with a choir of boys dressed as angels; when the Pope drew near, one of them descended from his place and sung so sweetly, commending the city to him, that Pius burst into tears. When Charles VIII. of France entered here in May 1495, accompanied by the Signoria who had met him at the Antiporto, he had a similar reception, a boy dressed to represent the Madonna as Queen of the city singing a Latin welcome to the sound of music. The present gate was built in 1604, in honour of the Grand Duke Ferdinand I., from the design of Alessandro Casolani. Outside the gate is the Piazza d'Armi or Prato di Camollia, where the Spanish soldiers mustered in 1552 on the surrender of the citadel. Here is the column that marks the place where Enea Silvio Piccolomini introduced the Emperor to his bride, Leonora of Portugal. The Antiporto or Portone was many times destroyed and rebuilt, the present structure dating from the seventeenth century. A short way further on, on the road towards Florence, is the _Palatium Turcorum_, the palace of the Turchi (a family of the Noveschi who were connected with the Piccolomini), a red brick structure with a fine tower. It has been popularly called, from the fifteenth century downwards, the Palazzo de' Diavoli. The chapel is a fine piece of Renaissance architecture by Antonio Federighi, with a frieze somewhat recalling that of the chapel of the Campo; in the interior are tasteful terra-cotta mouldings and an Assumption with a multitude of Angels, St Jerome and St Thomas--like a Sienese picture of the Quattrocento in terra-cotta--also by Federighi. It was little beyond this palace that the Sienese pursued the routed Florentines and _papalini_ in 1526--but they fled for ten miles without stopping.