On 20th July, a Wikidata workshop took place at the Musée de Bretagne. The two goals were to share knowledge about Wikidata between the participant ("How to do this?" or "Which tool to use for doing that?") and to improve the data around the heritage (in order to get better data for Wiki Loves Monuments in September). 3 hours were not enough to clean all the data but thanks to with 8 - more or less - seasoned Wikimedians a lot has been corrected already.