They came after the Titanic, but they are the biggest ships in the world right now.
Pierre Guillaumat was a supertanker, built in 1977 by Chantiers de l'Atlantique at Saint-Nazaire for Compagnie Nationale de Navigation. Pierre Guillaumat, which was the third vessel of Batillus class supertankers (the other three, slightly smaller, were Batillus, Bellamya and Prairial), is distinguished as the biggest ship ever constructed, surpassed in size only by Seawise Giant[5][6] (later Jahre Viking, Happy Giant and Knock Nevis) built in 1976, and only subsequently lengthened, although the four ships of the Batillus class had a larger gross tonnage.