The majestic proportions of the Sanctuary Of The “Ara della Regina” validates the importance of Etruscan Tarquinia throughout Etruria. The excavations have revealed evidence supporting the possibility that the hero and founder of Tarquinia, Tarconte was remembered and honoured up until the 6th century B.C.
The presumable remains of his cenotaph, or funerary monument, have been found, consisting of two large platforms constructed of square blocks which are oriented towards a different direction than the remains of a later temple built on the same spot in the 4th century B.C.
Only few decorative elements remain from this monumental period and they are limited to terracotta fragments which once adorned the ornate pediment of the facade. The most famous of these is the high relief of The Winged Horses which is now housed in the National Archaeological Museum of Tarquinia. It is probable that the scene represents the apotheosis or deification of the hero Heracles, ancestor of Tarconte, after his incineration on the funeral pyre.