Key Facts
- Duration
- 4 days (11–14 June 1666)
- English ships lost
- ~20 ships
- English casualties incl. prisoners
- over 5,000
- English killed
- over 1,000
- Dutch ships lost
- 4 ships destroyed by fire
- Dutch killed or wounded
- over 2,000
Strategic Narrative Overview
The battle began off the Flemish coast on 11 June 1666 and raged for four days across the southern North Sea. Dutch forces under senior admirals pressed the English fleet hard, sinking or capturing around twenty English ships and inflicting heavy casualties including two English vice-admirals killed. Despite the scale of the Dutch assault, the battered English fleet managed to withdraw and resist a follow-up Dutch attack at anchor in the Thames estuary in early July.
01 / The Origins
The Four Days' Battle took place within the broader context of the Second Anglo-Dutch War (1665–1667), a conflict driven by commercial and colonial rivalry between England and the Dutch Republic. Both powers competed fiercely for dominance of Atlantic and Asian trade routes, and the war saw repeated fleet engagements as each side sought to break the other's naval power and impose a favorable peace.
03 / The Outcome
The battle ended as a clear Dutch victory, with England suffering far greater losses in ships and men. However, England rapidly refitted its damaged fleet and within weeks turned the tables, defeating the Dutch at the St. James's Day Battle on 25 July 1666. The Four Days' Battle thus failed to deliver a decisive strategic blow, and the war continued until the Treaty of Breda in 1667.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Sir Christopher Myngs (killed), Sir William Berkeley (killed), George Ayscue (captured).
Side B
1 belligerent
Cornelis Evertsen (killed), Abraham van der Hulst (killed), Frederik Stachouwer (killed).
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.