Under Charles I. the English pretension rapidly developed and reached its greatest height, in connection more particularly with the ship-money fleets. The need of an efficient navy for the most elementary duty of safeguarding the sea had been made fully manifest by the frequent and flagrant violations of the king’s sovereignty in his “chambers,” and even in the ports and harbours, both by the Dutch and Dunkirkers. And some of the reasons which were used to justify the formation of a powerful fleet, far beyond the requirements necessary to enforce the ordinary jurisdiction, were sound enough. Without it, it was said, the kingdom could not be made safe, whereas if the king had the command of the seas he would be able to cause his neighbours “to stand upon their guard” whenever he thought fit; and it could not be doubted that those who would encroach upon him by sea would do it by land also when they saw their time. But the pretensions of Charles went far beyond this. He had caused the records in the Tower to be searched for evidence of the ancient supremacy exercised by the crown in the Sea of England, and when they were found they were interpreted in the widest possible sense. Charles assumed the rôle of the Plantagenets with a good deal added. The bounds of the Sea of England were extended to the coasts of the Continent, and over all the intervening water the king was to enforce an absolute sovereignty. No foreign fleets or men-of-war were to be allowed to “keep any guard” in them, to offer any violence, or to take prize or booty. All passing through them were to be “in pace Domini Regis,” in the peace and under the protection of the King of England, who was Lord of the Seas, ruling over them as part of his territory, and he would take care that there was no interruption of lawful intercourse. And as an acknowledgment of this sovereignty, all foreign ships or vessels meeting with a king’s ship in “those his seas” were to lower their top-sails and strike their flag as they passed by. Charles even proposed to levy tribute on the foreign ships that passed through “his seas,” but by the advice of the Admiralty this was to be only voluntary, in payment for waftage or convoy. These extraordinary pretensions Selden attempted to justify in his book, _Mare Clausum_, but Charles was unable to carry them into effect. It is pitiful to read of the proceedings of the great ship-money fleets, created under circumstances so memorable in English history, roaming about the Channel in their vain attempts to compel the French men-of-war to strike their flags, and in the North Sea forcing the king’s licenses on the poor Dutch herring fishermen. The Earl of Northumberland succeeded in the latter mission, against which the Dutch Government strongly protested, and there is no doubt that if the policy had been persisted in, the first Dutch war would have been antedated by some fifteen years.