Conversation so far:
Was Richard I of England involved in the crusades?
Richard I of England was a central Christian commander during the Third Crusade, leading the campaign.
When did Richard I of England go on a crusade?
After Richard I became king, he and Philip II agreed to go on the Third Crusade.
Where did Richard I of England's and Phillip II go during the crusade?
In September 1190 Richard and Philip arrived in Sicily.

Question: What countries did they go to
Self-contained rewrite: What countries did Richard I of England and Phillip II go to?