The Canal de Tancarville is a 25 km waterway in France connecting the English Channel at Le Havre to the Seine at Tancarville.
The kings Charles V (1364 - 1380) and Charles VI (1380 - 1422) financed the transformation into a castle for the successive owners of the castle, the counts de Tancarville Jean II and his grandson Guillaume IV.
Earl of Tankerville is a title drawn from Tancarville in Normandy which has been created three times, twice in the Peerage of England and once (in 1714) in the Peerage of Great Britain for Charles Bennet, 2nd Baron Ossulston.
Léonor d'Orléans (1540 – 7 August 1573) was duc de Longueville, prince of Châtellaillon, marquis of Rothelin, count of Montgommery and of Tancarville, visount of Abberville, Melun, count of Neufchâtel and of Valangin, was governor of Picardy and Normandy and one of the military leaders of the French Wars of Religion.
The Earldom of Tankerville lost its lands when France was lost to the English crown in 1453.
The Tancarville Bridge (Pont de Tancarville in French) is a suspension bridge that crosses the Seine River and connects Tancarville (Seine-Maritime) and Marais-Vernier (Eure), near Le Havre.
Guillaume IV de Melun, Count of Tancarville, Lord of Montreuil-Bellay, was a French politician, chamberlain and advisor to King Charles VI of France.
The line would then follow the left bank of the river Seine until a triangle junction situated east of Honfleur; from here a line would cross the Seine between Normandy and Tancarville bridges, ending in a link which would enable service to Le Havre.