Benedetto Giovannelli was an architect

Architect

An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...

 from Siena

Siena

Siena is a city in Tuscany, Italy. It is the capital of the province of Siena.The historic centre of Siena has been declared by UNESCO a World Heritage Site. It is one of the nation's most visited tourist attractions, with over 163,000 international arrivals in 2008...

.

He was commissioned in 1660 by Pope Alexander VII

Pope Alexander VII

Pope Alexander VII , born Fabio Chigi, was Pope from 7 April 1655, until his death.- Early life :Born in Siena, a member of the illustrious banking family of Chigi and a great-nephew of Pope Paul V , he was privately tutored and eventually received doctorates of philosophy, law, and theology from...

 (a Chigi) to build a new marble

Marble

Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.Geologists use the term "marble" to refer to metamorphosed limestone; however stonemasons use the term more broadly to encompass unmetamorphosed limestone.Marble is commonly used for...

 façade

Facade

A facade or façade is generally one exterior side of a building, usually, but not always, the front. The word comes from the French language, literally meaning "frontage" or "face"....

 for the church of San Raimondo

San Raimondo (Siena)

San Raimondo is a church in Siena, Tuscany, Italy.It was built from 1596 by will of the Sienese noble Aurelio Chigi. In 1660, Pope Alexander VII commissioned from the city's architect, Benedetto Giovannelli, a new marble façade, which is in three classicist-style superimposed orders.The interior...

, which is in three classicist-style superimposed orders.

He was one of a group of architects (the others being Damiano Schifandini, Flaminio del Turco, Giovanni Fontana

Giovanni Fontana (Dominican)

Giovanni Fontana was a Dominican friar and late-Mannerist architect, as well as brother of Domenico Fontana.-External links:*...

) who produced buildings marked by a harmonious, measured style.