I felt the same way. There's really no reason to feel sad - it was a full life that closed peacefully - but I enjoyed wishing her a happy birthday every year and knowing she was living and thriving. There are a few performers left from the era but with de Havilland gone it really does feel like closing the book on an era.
I hope we get to see something of that second memoir she was said to be working on.
Fans, what is your favorite de Havilland role(s)?
Mine, in no particular order:
"The Heiress." I have quibbles with it as compared to the novel, but the cast and direction are wonderful.
"The Adventures of Robin Hood." The movie is perfect of its kind and de Havilland looks and acts the perfect storybook heroine, sweet and ardent and spirited.
"They Died With Their Boots On." De Havilland demonstrates how much she matured as an actor during the years with Flynn. Her Libbie Custer is gentle but very strong.
"The Strawberry Blonde." Not really "her" movie but she's great and I love the picture.
"Gone with the Wind." Natch. The character would have been hopelessly sappy in the hands of most other actors.
Camp value:
"Hush, Hush Sweet Charlotte."