born: May 18th, 1474
died: February 13th, 1539
married: Francesco 2nd Gonzaga, Marquess of Mantua
Parents: Ercole 1st d'Este and Leonora of Naples
She was a supported artists and bought so many paintings she basically had a museum. A lot of famous artists painted her portrait for example Titan. She was also a trend setter a lot of nobles copied her style.
The URl is here if the botton doesn't work.
I think the greatest thing she did in her life is that she inspired the artist of that era to keep painting and bought a lot of the paintings. She also was good ruler of the city-state, Solarolo in (1529-1539).