I didn't know her, but Michael Ledeen did. Here's his beautiful tribute. Money quote:
Like all creative persons, she was a bundle of contradictions, for those inner turmoils are what drive such people to create. She reveled in her non-conformism and her independence, but she was also profoundly traditional, both privately and intellectually. She could not bear to live in Italy. She was repulsed by what had happened to her Florence, but she was also intensely Florentine and I never doubted that she would find the strength to go there to die. She loved to make trouble, even for her family and closest friends, but her thoughtfulness and humanity required her to be close to the family cemetery when she left. She didn't want to be a burden.
Yes, she was a little crazy. But good crazy.