 The latter, built at great expense at Newhaven, near Edinburgh and launched in 1511, was in length, weighed 1,000 tons and was, at that time, the largest ship in the world.James IV was a true Renaissance prince with an interest in practical and scientific matters.He granted the Incorporation of Surgeons and Barbers of Edinburgh a royal charter in 1506, turned Edinburgh Castle into one of Scotland's foremost gun foundries, and welcomed the establishment of Scotland's first printing press, Chepman and Myllar Press, in 1507.