A French couple on Tuesday chose Venice to renew the marriage vows they took 70 years ago. Jean Korde\', 92, and Liliane Deauvergne, 87, have been coming to the lagoon city every year for 30 years. Received at Ca\' Farsetti, a palazzo on the Grand Canal owned by the city council, they were given a souvenir parchment and a painting to mark the occasion