This battle took place on 16 May 1644 during the Danish-Swedish War near List Deep, between Sylt and Rømø in western Denmark.

Nine Danish ships under King Christian IV forced a retreat back into List Deep of 26 smaller Dutch ships (13 under Marten Thijsen and 13 under Hendrik Gerritsen) which had been leased to Sweden.

[1] 4 more Dutch ships from Marcus' squadron appeared during the battle but took no part.

Trefoldighed 48 Tre Løver 46 Lindorm 38 Norske Løve 30 Neptunus 28 Sorte Rytter 24 Phenix 20 Postillion 14 Hollandske Fregat 12 Gulde Swaen (flag) Grooten Dolphien (2nd flag of Gerritsen) Lange Bark 10 others plus 4 under Marcus