Lamberton, however, like most English traders, was a man of tenacity and courage. Certainly he was persistent when he thought he saw a good thing. The very next year he was back in the river again. This time, unfortunately for him, the atmosphere was even more hostile. That hot-tempered, national-minded Governor of New Sweden, Johan Printz, had arrived in the meantime--all four hundred imperious pounds of him! “Big Belly” Printz, as the Indians called him, came with the fire of patriotism in his eye. He was not one to stand for any nonsense from foreigners. As a good diplomat he maintained a neighborly friendship with the Dutch, as he had been instructed to do, that is, so long as they were no military threat to New Sweden and so long as they could be outwitted in the Indian trade. But the English--those aggressive and stubbornly nationalistic colonizers--were another matter. So, in 1643, when George Lamberton once more sailed up the Delaware in his pinnace, he was to find himself in real trouble. Intercepting some Minquas en route to Fort Christina with their furs, Lamberton induced them to trade with him. Whereupon the Swedish governor invited him to dinner in order to arrest him, the charge being that of having bribed the Minquas with cloth and wampum to massacre the Swedes and Dutch. For a while it looked as if the Englishman might have a short life. But, although “Big Belly” set himself up as inquisitor, prosecutor and judge, he couldn’t make his accusation stick before a mixed court of English, Dutch and Swedish commissioners in the face of 400 beaver skins Lamberton produced as evidence of his peaceful barter. In the end Printz could only fine the New Englander double duty on the beaver skins he had taken in trade and let him go. As a parting threat however, he told Lamberton that his pinnace would be confiscated if ever he traded again in New Sweden without authorization. Then the corpulent but vigorous governor turned his full attention to tightening Swedish control of the river, with a view toward gaining a monopoly of the fur trade for his company. On the east side of the Delaware, where he pretended to the same land claimed by the New Englanders, he constructed a stronghold which he named Fort Elfsborg. It was an imposing earthwork, emplaced with 8 twelve-pound guns and a mortar. Located on waterside just below Varkens Kill and garrisoned by thirteen men, Fort Elfsborg not only asserted Printz’s authority over a sickly remnant of the New Haven Englishmen still there, but gave him military control of the river. Even Dutch vessels on their way up to Fort Nassau were compelled to lower their flags before the guns of the Swedish fort, their skippers no doubt muttering curses against “Big Belly” who now “held the river locked for himself.”