Entering through the south doorway of the Palermo Cathedral the visitor will find himself in the right side aisle, the first and second chapels of which contain the monumental tombs of the ruling dynasty of the Norman-Hohenstaufens. There are four sarcophagi in porphyry, a material which had to be imported from Egypt and which previously - because of its purple color - was permitted to be used only for the tombs of Roman and Byzantine emperors. The altar canopy and the pillars supporting it are also made of porphyry.
King Roger II (d. 1154) was the first to be buried here - in a newly prepared and simple sarcophagus and not, as he had wished, in "his" cathedral in Cefalù. The two artistically more pleasing sarcophagi which he had had built in Cefalù were brought to Palermo Cathedral in 1215, on instructions from Frederick II, and Frederick II himself (d. 1250) and his father Henry VI (d. 1197) are interred in them. The fourth sarcophagus is that of Frederick II's mother Constance (d. 1198), a daughter of Roger II.
The four sarcophagi are arranged in two rows: on the left of the front row is that of Frederick II, supported by four lions; the tympanum shows the Norman crown and on the top are decorative panels depicting the Virgin Mary and Christ the Pantokrator (Almighty Ruler) between symbols of the Apostles. This tomb is usually decorated with flowers. It is clear that Sicilian nobility paid due homage to the great Frederick and considered the design of his tomb as perfect, as there are a number of copies to be seen, for example, in the cathedral at Mazaro del Vallo and in the Chiesa Santissimo Salvatore in Naro where, however, they clearly knew their place and used green marble rather than the royal purple porphyry.
To its right lies the sarcophagus of Henry VI, and in the rear row that of Roger II on the left and of Constance on the right.
Two further tombs can be seen let into the wall: on the left is that of William I (d. 1339), a descendant of Frederick II, and on the right that of Frederick's first wife, Constance of Aragon (d.1222); she lies at rest in an ancient figure-shaped sarcophagus with the touching Latin inscription "Sicaniae regina fui Constantina coniux augusta hic abito nunc Federice tua" (I, Constantine, was Queen of Sicily and the wife of the Emperor, but now I reside here, yours, O Frederick).
The sarcophagus was opened in 1781. Inside, the embalmed bodies of Frederick II and his wife Constance were found to be well-preserved and surrounded by expensive grave goods. Today these objects are kept in the cathedral treasury.