Terracotta relief of St. Mary with Child on the façade of the Palazzo d'Accursio.
NICOLAVS F. MCCCCLXXVIII
Niccolò dell'Arca (c. 1435 - Bologno 1494),
Italian Early Renaissance sculptor; also known as Niccolò da Ragusa, Niccolò da Bari and Niccolò d'Antonio d'Apulia. The surname 'dell'Arca' refers to his contribution to the Arca di San Domenico