At the north-west is a square bell tower, originally surmounted with four slender pinnacles (removed at some time between 1874 and 1892).
It was originally surmounted by a Pietà (87 x 90 cm), now at the Galleria Nazionale dell'Umbria.
Two stone cross heads on display at the hall may have originally surmounted the shafts.
Featuring a serpent at its top, an upright stone column tilts 13 degrees northward, and was originally surmounted by a round disc.
Most likely the church was originally surmounted by a dome, but in the nineteenth century this had already been replaced with a wooden roof.
The tower was completed in 1708 and was originally surmounted by a wooden lead covered spire.
These were originally surmounted by three oculi, one above two, and not only one, as is the case today.
The parapets of the tower and body of the church were originally surmounted by pinnacles but these are no longer present.
On three sides of the pedestal are medallion portraits of the three men, originally surmounted by figures of the Irish wolfhound, now removed.
The tower was originally surmounted by a wooden and slated broach-spire complete with a weathercock.