Nice romantic city/town outside of Paris for 7 days?

i'm going to be spending 7 days in August in france with my fiancee and am looking for a town or city in France that is romantic, where there are nice things to do like museums, nearby wine tours, castles, horse riding, good cheese and great food (especially seafood), bike riding in the city and from town to... show more i'm going to be spending 7 days in August in france with my fiancee and am looking for a town or city in France that is romantic, where there are nice things to do like museums, nearby wine tours, castles, horse riding, good cheese and great food (especially seafood), bike riding in the city and from town to town, going for picnics etc..

can anyone give some advice, share their experience, and possibly also send links ?
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