Shortly after the referendum on the status of Crimea held on 16 March 2014, Guigou and her counterparts of the Weimar Triangle parliaments – Norbert Röttgen of Germany and Grzegorz Schetyna of Poland – visited Kyiv to express their countries' firm support of the territorial integrity and the European integration of Ukraine. This was the first time that parliamentarians of the Weimar Triangle had ever made a joint trip to a third country.