Conversation so far:
What was Judi Dench's first honour?
Judi Dench was appointed Officer of the Order of the British Empire (OBE) in the 1970 Birthday Honours.
What has Judi Dench done to earn the 1970 Birthday honours?
The Most Excellent Order of the British Empire is a British order of chivalry, rewarding contributions to the arts and sciences, work with charitable and welfare organisations, and public servic.
What kind of charity work has Judi Dench done?
In the late 1990s Judi Dench was the patron of over 180 charities, many of which were related either to the theatre or to medical causes.

Question: What was her most succesful charity?
Self-contained rewrite: What was Judi Dench's most succesful charity?