This quote translates as "Joconde (Giacondo) put up this twin bridge here for you, Sequana; you are able to speak of this priest with authority" or "in this you can swear that he was the bridge-builder", punning on two possible meanings of pontifex.
The springs, called the Fontes Sequanae ("The Springs of Sequana") are located in a valley in the Châtillon Plateau, to the north-west of Dijon in Burgundy, and it was here, in the 2nd or 1st century BC, that a healing shrine was established.
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