The Dowry of Clarice Orsini . . .

. . . was 6000 florins.  When we ask how much money that is in today's world, we could either calculate using the value of gold (one florin had 54 grains of nominally pure ('fine') gold (3.5g, 0.1125 troy ounce-- check my math, but I think one florin is around $200 US), perhaps $1,200,000.  Not a paltry sum, but let's consider what florins would buy at the time Clarice married Lorenzo:

Using an income calculation and consulting Frick in her book (now available on Kindle), Dressing Renaissance Florence, a family of four could live at a basic level on 56 to 70 florins a year, and Brunelleschi as foreman for the Duomo, made 100 florins a year. A famous university professor and a successful lawyer each made 200-500 florins a year.  So let us add three 000's to that 6000 florins, and now we see that the Orsini contribution was perhaps closer to six million dollars.

Going forward, we'll be looking at what six million dollars would buy in Renaissance Florence.  A 15 acre vineyard was valued at 120 florins; a middle class artisan could rent housing in the Olt'arno for 10 florins a year.  A wedding feast cost 67 lire (about 10 florins), and included 52 brace of capons, 530 loaves of white bread, 140 eggs and half a barrel of red wine. 

Of course, barter and trade, as well as an extensive system of credit and lending, favors and obligations,  further complicate the issue of comparing the lives of Renaissance women to that of our own.