This Bordeaux second-growth estate in the St.-Julien appellation has in the past been overshadowed by its neighbors, Léoville Las Cases and Léoville Barton, but it's the 2018 Léoville Poyferré that earns the No. 7 spot among Wine Spectator's 2021 Top 100 Wines of the Year. Senior editor James Molesworth shares the historic estate's story.