Following up on this previous thread: https://en.numista.com/forum/topic130465.html
Here is a list of Ruling Authorities that cover the known coins of Modena and Reggio. There are no known issues between 1336 and 1450.
Sources:
CNI Vol. IX, p.185-377 (Modena) and p. 658-772 (Reggio)
https://en.wikipedia.org/wiki/Duke_of_Ferrara_and_of_Modena
Modena, Commune (1226-1289)
Reggio, Commune (1233-1289)
Modena and Reggio, Este Lordship of
Azzo VII (1293-1306)
Modena, Republic (1306-1336)
Duchy of Modena and Reggio, House of Este
Borso (1450-1471)
Ercole (Hercules) I (1471-1505)
Alfonso (Alphonse) I (1505-1534)
Modena under Imperial Control
Maximilian I (1513-1514)
Modena and Reggio under Papal Control:
Giulio (Julius) II (1512-1514)
Leone (Leo) X (1514-1521)
Adriano (Adrian) VI (1521-1523)
Clemente (Clement) VII (1523-1527)
House of Este
Ercole (Hercules) II (1534-1559)
Alfonso (Alphonse) II (1559-1597)
Cesare (1597-1628)
Alfonso (Alphonse) III (1628-1629)
Francesco (Francis) I (1629-1658)
Alfonso (Alphonse) IV (1658-1662)
Francesco (Francis) II (1662-1694)
Rinaldo (Reynold) (1694-1737)
Francesco (Francis) III (1737-1780)
Ercole (Hercules) III (1780-1796)