During the first half of the 1470s Amadeo executed the tomb of Medea Colleoni (d. 1470; not completed until after Bartolomeo Colleoni's death in 1475) for the Dominican sanctuary of Santa Maria at Basella (near Urgnano, Bergamo). Simultaneously he supervised the construction of the Colleoni Chapel in Santa Maria Maggiore at Bergamo (where the tomb of Medea Colleoni was moved in 1842).
