Complex sentence: On 30 April 1808, after a chase of five hours from under Moen island, "Salsette" captured the Danish 8-gun privateer "Krathesminde" (or "Kratbesminde"), which had left Copenhagen five days previously but had made no captures.
Split into simpler sentences: On 30 April 1808, "Salsette" captured a Danish privateer after a chase of five hours off Moen island. The privateer was the "Krathesminde" (or "Kratbesminde"), She had left Copenhagen five days previously but had made no captures.