The question of the “homage of the flag” had by this time also fallen somewhat into the background. In the two preceding years it had been enforced with much zeal. In 1636, when Northumberland’s fleet was among the herring-busses, Captain Carteret, in the _Happy Entrance_, forced a Spanish fleet of twenty-six sail to strike to him off Calais, though they tried their best to avoid it. A Dunkirker was also made to strike and “lie by the lee” off Nieuport by Captain Slingsby. But the French still refused to lower their flag when on the other side of the Narrow Sea. Sir Henry Mervin, on meeting two French men-of-war off Gravelines with their colours in the main-top, fired some twenty shots at them without causing them to strike. In the Mediterranean the French retaliated. An English vessel on the coast of Barbary was forced to lower its flag to French ships of war, and because the captain refused to go on board them when requested, the ship was attacked and captured. In the following year Captain Straddling of the _Dreadnought_ used drastic measures against some Hollander merchant-ships. Falling in with four of them off the Lizard, homeward bound from Brazil, with their flags abroad, he commanded them to strike. One refused till many shots were fired, excusing himself afterwards by saying he thought the English ships were Dunkirkers. Straddling took him into custody, and lodged him in Plymouth fort “to answer his insolence and contempt of his Majesty’s regality in these seas,” and he remained a prisoner there for a fortnight before he was released by order of the Admiralty.[588] But in 1638 there were few incidents of this kind, probably because of the fleet lying at anchor so long, though it may be supposed that the general condition of public affairs did not whet the zeal of the naval officers.