 The first formal survey on his relics was made in 1248 by the Domenicans who ministered to the Basilica of Sant'Eustorgio in Milan.The main church of the town of Legnano, about 20 km (12 mi) from Milan, is dedicated to Magnus.The "Basilica di San Magno" of Legnano was built between 1503 and 1513 and a part of relics of Magnus were translated there on 5 November 1900.