Royalists: approximately 2,500-3,000 cavalry and dragoons; Parliamentarians: a roughly equal force of cavalry and dragoons (sources: Historic England Battlefield Report, Wikipedia).
Winceby 1643 — Eastern Association Triumph was a Civil War pitched battle between opposing field armies, fought at Lincolnshire, England in 1643. Parliamentarians (Earl of Manchester and Oliver Cromwell) prevailed over Royalists (Sir John Henderson, Sir William Widdrington, Sir William Savile). The Royalist relief force marching to raise the Parliamentarian siege of Bolingbroke Castle was intercepted and routed in a cavalry action lasting under half an hour; Lincoln subsequently fell to Parliament and Lincolnshire was lost to the Royalist cause.
The site of Winceby 1643 — Eastern Association Triumph lies on Wealden Group, bedrock that formed in the Barremian. The rock here is mudstone, siltstone and sandstone.
This page covers Winceby 1643 — Eastern Association Triumph. A full Aubrey report for the area pulls together this battle alongside scheduled monuments and everything else the record holds within a few miles:
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