Ferdinand I of Aragon and Louis XII of France meet at Savonna in
northern Italy, and agree to sell Pisa to Florence, a transaction
that is carried out in 1509. Having been under the control of
Florence almost throughout the fifteenth century, the city-state
had seized its chance to reclaim independence amid the chaos of the
French invasion of Italy in 1496. However, with this takeover by
Florence, its absorption into the now more powerful state was to be
permanent.
Citation:
Editors. "Ferdinand I and Louis XII agree to sell Pisa to Florence".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14125, accessed 22 May 2013.]