The leaders of Germany, France and Italy will meet on Monday to discuss how to keep the European project together in the second set of talks between the premiers of the eurozone’s three largest economies since Britain’s shock vote to leave the bloc. Italian Prime Minister Matteo Renzi hosts German Chancellor Angela Merkel and French President Francois Hollande on an island off the coast of Naples ahead of September’s EU summit called to discuss reverberations from the Brexit vote. “They will be coming to discuss how to relaunch Europe from the bottom up; there’s a big need,” Renzi said on...