Sentence:  Mercator replaced Ziegler's stiff, artificial rivers and lakes with fluid, <WSD>Holbeinian</WSD> waters, while the Bavarian's sea - so tormented and heavily worked that it always threatened to inundate the land -- was substituted by patches of placid hatching cruised by ships and improbable fish. 
Meaning of the word marked with <WSD> tags:  (art) In the style of (Hans Holbein the younger).