In 1448 he started working, together with Vivarini and Andrea Mantegna, in the decoration of the Ovetari Chapel in Padua, but died soon afterwards.
The project was carried out by his widow, Imperatrice Ovetari, who, in 1448, commissioned the work to a group of artists, which included the elder Giovanni d'Alemagna, Antonio Vivarini (a Venetian late Gothic painter) and two young Paduans, Niccolò Pizzolo and Andrea Mantegna.
Don Giovanni | Giovanni Pierluigi da Palestrina | Giovanni Bellini | Giovanni Riggi | Giovanni Boccaccio | Giovanni Battista Pergolesi | Giovanni Battista Tiepolo | Giovanni Battista Guarini | Giovanni | Giovanni Trapattoni | Giovanni "John the Eagle" Riggi | Giovanni Gabrieli | Giovanni Falcone | Villa San Giovanni | San Giovanni in Persiceto | Giovanni Verga | Giovanni van Bronckhorst | Giovanni Tamagno | Giovanni Pacini | Giovanni Battista Pescetti | Giovanni Papini | Giovanni Hidalgo | Giovanni Domenico Cassini | Giovanni de' Medici | Giovanni Bottesini | Giovanni Battista Riccioli | Giovanni Zenatello | Giovanni Visconti | Giovanni Schiaparelli | Giovanni Pisano |
The Carolingian chapel has frescoes by Giovanni d'Asciano with stories of St. Benedict and currently acts as sacristy.
Peru's Antonio D'Onofrio, son of immigrants hailing from Caserta, Italy, spawned his own brand using the Alemagna formula, which he licensed along with the packaging style.