Its origin dates to 1590 when John Francesco di Sangro, Duke of Torremaggiore, after recovering from a serious illness, had a private chapel built in what were then the gardens of the nearby Sansevero family residence, the Palazzo Sansevero. The building was converted into a family burial chapel by Alessandro di Sangro in 1613. Definitive form was given to the chapel by Raimondo di Sangro, Prince of Sansevero, who also included Masonic symbols in its reconstruction. Until 1888 a passageway connected the Sansevero palace with the chapel. The chapel received its alternative name of Pietatella from a painting of the Virgin Mary, spotted there by an unjustly arrested prisoner, as reported in the book Napoli Sacra by Cesare d'Engenio Caracciolo in 1623. When the chapel was constructed it was originally dedicated to Santa Maria della Pietà, after the painting.
Works of art
The chapel houses almost thirty works of art, among which are three particular sculptures of note. These marble statues are emblematic of the love of decoration in the Rococo period and their depiction of translucent veils and a fisherman's net represent remarkable artistic achievement. The Veiled Truth was completed by Antonio Corradini in 1752 as a tomb monument dedicated to Cecilia Gaetani dell'Aquila d'Aragona, mother of Raimondo. The 1753 Christ Veiled under a Shroud, by Giuseppe Sanmartino, shows the influence of the veiled Modesty. The Release from Deception completed in 1753-54 by Francesco Queirolo of Genoa serves as a monument to Raimondo's father. The ceiling, the Glory of Paradise, was painted by Francesco Maria Russo in 1749. The original floor was in black and white in the design of a labyrinth. In the basement there is a painting by the Roman artist Giuseppe Pesce, Madonna con Bambino, dating from around 1750. It was painted using wax-based paints of Raimondo di Sangro's own invention. The prince presented this painting to his friend Charles Bourbon, king ofNaples.
Monument to Giovan Francesco de' Sangro, Francesco Celebrano;
Veiled Christ, Giuseppe Sanmartino.
Anatomical exhibits
The chapel also displays two early examples of what was long thought to be a form of plastination in its basement. These "anatomical machines" were thought to be examples of the process of "human metallization" as implemented by anatomist Giuseppe Salerno ca. 1760 from a commission by Raimondo di Sangro. The exhibit consists of a mature male and a pregnant woman. Their skeletons are encased in the hardened arteries and veins which are colored red and blue respectively. Previously, historians have surmised that the corpses could have been created by injecting the hardening substances directly into the veins of living subjects. However, recent analysis shows no evidence of techniques involving injection. Analysis of the "blood vessels" indicate they are constructed of beeswax, iron wire, and silk.