Complex sentence: In his third (1643--49) he went as far as Java, and returned by the Cape; but his relations with the Dutch proved not wholly satisfactory, and a long lawsuit on his return yielded but imperfect redress.
Split into simpler sentences: In his third journey (1643--49) he went as far as Java, and returned by the Cape. His relations with the Dutch proved not wholly satisfactory, and a long lawsuit on his return yielded but imperfect redress.