Johann Jakob Trivulzio held Mesocco through a combination of military service to the Sforza and, later, to the French crown — he commanded the forces that took Milan for Louis XII in 1499. His authority over the Val Mesolcina was never entirely secure; the valley was sold to the Graubünden leagues by his heirs in 1549, ending the lordship entirely. The sesino itself was a fractional silver denomination common to northern Italian and Swiss border territories, its small module a practical concession to daily small-value transactions in mountain market towns.
Johann Jakob Trivulzio held Mesocco through a combination of military service to the Sforza and, later, to the French crown — he commanded the forces that took Milan for Louis XII in 1499. His authority over the Val Mesolcina was never entirely secure; the valley was sold to the Graubünden leagues by his heirs in 1549, ending the lordship entirely. The sesino itself was a fractional silver denomination common to northern Italian and Swiss border territories, its small module a practical concession to daily small-value transactions in mountain market towns.