Law of Guernsey and yet another in 1338 resulted in both the improved training of the militia and a Royal Charter of 1341 confirming the Islands' constitution, this Charter being ratified by successive sovereigns. The ratification by Elizabeth I of 1560 set out in detail the rights of the Bailiwick of Guernsey. A seal granted to the Channel Islands in 1279 and to each of Guernsey and Jersey in 1304 have become symbols of Guernsey's separate identity from both Jersey and the United Kingdom. The customary law of the Duchy of Normandy is particularly influential as a source of law. Norman law developed
Maritime history of the Channel Islands promise they would be fed and clothed. Jean Martell from Jersey established in 1715 the Cognac manufacturer Martell and established trading links with Guernsey. The Islands had an involvement in the slavery trade. Guernsey has identified 11 sailings, mainly from the Gambia, between 1741 and 1761, with 2,118 slaves taken and 1,800 delivered. The wine trade was very important, in 1771 Guernsey merchant, Le Marchant recorded 8,000 tons of claret shipped from Bordeaux to Ireland, noting it was usual to mix with ¼ of Spanish wines to make it suitable for the Irish market. By controlling the brandy trade from