Giacomo de' Rossi

Giacomo de' Rossi (died c. 1370) was the son of Rolando de' Rossi and Agnese Ruggeri. After his father's bid to rule Parma had failed, the Rossi settled for a much smaller lordship, and Giacomo became its first count.

With his brother Bertrando he lent the debt-ridden cathedral chapter of Parma large sums, and in 1365 the chapter gave the brothers the lands of San Secondo in compensation. In 1367, after Bertrando died, Giacomo was enfeoffed with San Secondo; the next year its inhabitants swore him fealty, a sign that Rossi power there was already rooted.

In his will of August 1370 he left the county to his nephew Bertrando the younger, though his own son Rolando held it de facto until 1389.