The corner palace, with the round stone portal was commissioned by Scipione di Cristofano Chigi in the 16th century. The design is attributed the
Bartolomeo Neroni. The palace remained in the
Chigi family till 1785. In 1919, it was owned by Giorgio
Piccolomini Adami. It was sold to the state in 1959. The palace is notable because two rooms in the main floor retain the late
Renaissance decoration (1573), including stuccoes by
Marcello Sparti and frescoes by
Bernard van Rantwyck. The ceilings depict biblical episodes from the old testament. The twelve sybils are painted in the spandrels. One scene depicts the
Chariot of Fire of Elias, and ''Jacob's ladder
and Isaiah
. Two niches have figures of Samson and David. Another room is frescoed with the Story of Camillus''. Wall canvases have paintings of Roman history. Other rooms have mythologic frescoes. In 2014, the palace housed offices of the Soprintendenza per i Beni Architettonici e per il Paesaggio per le province di Siena e Grosseto. In the Piazza in front of the palace stands 15th century column surmounted by an iron statue of the
Lupa Senese or Sienese Wolf, symbol of the city. The fountain in the piazza is surmounted by an eagle, marking this area as part of the ''Contrada dell'Aquila''. ==References==