Lawango and Lovango are variants spellings of Luango. This was a coastal trading nation. You can find references to Gabon, the Congo, Cabinda and Angola. The Danish customs system operated on a system in which the inspectorate was offered up for bid to merchants. A winner promised to pay the Government the most money for the position. Any incoming ship would declare a value of it's cargo. The inspector had a three days right to inspect the cargo and could buy it for the value claimed by the ship captain and or the ship's supercargo. The supercargoship was a professional role of " the trader on board" sometimes held by the captain sometimes not. The shippers would sometimes undervalue the cargo in hopes of cheating the Customs. The system made it so that the merchant holding the inspectors position could scoop a profit off the cheater by buying it at this same understated value. My Uncle Randolph Brewster once told me a story about how upset a merchant for whom he did odd jobs for got when this had happened. The inspector at the time was a Nelthropp