B&B Palazzo Bruchivs?

"This six-roomed B&B in a 17th-century palazzo close to the Campo is one of the few places in Siena where one wakes up to church bells and chirping birds rather than street noise." Full review

"In an 18th-century palazzo in the heart of Siena, this friendly B&B is within easy walking distance of Piazza del Campo."

"Housed in a seventeenth-century palazzo, this small B&B, run by a friendly mother-and-daughter team, is a real bargain. Several of the lovely bright rooms have frescoed ceilings."