The Tomb of Caius Calventius Quietus is structured very similarly to the Tomb of Tyche; however, it is not accessible for outside visitors. The outer wall facing the street is low enough for visitors to see the large marble altar featured on top of the funerary chamber, decorated with an honorary seat and a dedicatory inscription, which reads as follows:
C(aio) Calventio Quieto
Augustali
huic ob munificent(iam) decurionum
decreto et populi conse(n)su bisellii
honor datus est
[CIL X 1026]
“For Caius Calventius Quietus, Augustalis. The honor of this seat was given to him for the sake of generosity by decree of the decuriones and by the consensus of the people.” [Translation by author.]
The tomb was lavishly decorated, despite not being accessible on the street itself. Three sides of the marble altar were covered in decorative motifs, and even the pilasters were stuccoed with various mythological reliefs: Victories on front, followed by Oedipus and the Sphinx, Theseus (?), and a female figure. Similar to the Triclinium Tomb, the Tomb of Caius Calventius also had a pedimental feature, which served as a background for the entire funerary scene.
Similar to Tyche and Faustus, freedman status is also attributed to Quietus.