Battistero di San Giovanni Battista

Beside Grado's cathedral, the early Christian baptistery preserves an octagonal plan, traces of sixth-century mosaic pavement and a hexagonal baptismal font. The building's repeated remodelling has not erased its characteristic shape.

Why it matters

The baptistery formed part of the patriarchal complex of Sant'Eufemia, the ecclesiastical centre of Grado. Its separate structure and central font reflect the importance of baptism in the early Christian community. The octagonal form remained legible through later alterations and continues to define the small building beside the cathedral.

What to notice

Eight sides enclose the central hall and its hexagonal font, associated with baptism by immersion. Patches of sixth-century mosaic survive in the floor. A frontal altar slab bears a monogram attributed to Probino of Benevento, framed by doves and peacocks, while wall mosaics include areas of later reintegration. The form of the room concentrates attention on the font and on the surviving traces of its early decoration.

Context and history

The baptistery is generally attributed to the sixth century, when Grado became a patriarchal centre after the Lombard invasion of 568. A regional account associates the building with Probino of Benevento, active in 569–571. Other accounts place the structure earlier, and the chronology of its construction remains debated. The building was altered in medieval and modern periods; a restoration in 1928 removed a later Baroque floor and brought early mosaic pavement and the font back into view. It remains part of the cathedral complex of Sant'Eufemia.