During the Renaissance, in Italy, how much money was a lot of money?

Question

(using Italian Currency. i.e Ducats, Florins....)

Answer 1

The only information I found was this reference to an artist being paid more than any other artist for a large art work. He received 500 ducats. I assume that was a lot of money.

http://www.renaissanceconnection.org/lesson_math_business.html