Evaluating Evidence for Kenilworth Castle's Layout

Contemporary Drawings

• Before modern cameras existed, historians had to rely on the keen eye of artists to record what a building actually looked like.
• The first comprehensive history of the site was Sir William Dugdale's 1656 book, The Antiquities of Warwickshire. It contains a vital ground plan and several engravings by the Czech artist Wenceslaus Hollar.
• Hollar created the famous "Kenilworth Triptych," which consists of three prospects (wide bird's-eye views) drawn from different angles, including Echo Meadow and Castle Hill.
• These sketches were likely made in 1649, capturing a crucial snapshot of the castle right before it suffered slighting (deliberate military destruction) ordered by Parliament.
• These topographical drawings feature a numbered key system to accurately pinpoint major structures, including the Strong Tower, John of Gaunt's Great Hall, and Leicester's Gatehouse.
• Utility: These 17th-century sketches are incredibly useful because they show the fortress completely intact, revealing features that physical ruins cannot. They capture features that have since vanished, recording the full height of the curtain walls and completely intact roofs. They also prove that the Gallery Tower continued to act as a viewing platform for the Tiltyard right up until the Civil War.
• Limitations: Despite their immense value, these sketches lack perfect reliability. Hollar was known to sketch with one eye covered, leading to perspective errors. Artists of the era also relied on schematic, stylized details, sometimes making up background trees or altering proportions for visual effect.

Aerial Photography and LiDAR

• Sometimes the clearest way to understand a massive fortress is not by standing inside it, but by flying hundreds of feet above it.
• Aerial photography captures the wider strategic landscape and reveals crop marks, which are differences in vegetation growth caused by buried features.
• These marks are the primary evidence for the Great Mere, an enormous 800-metre artificial lake built by King John that protected the western and southern approaches before being drained in 1649.
• Modern remote sensing technology called LiDAR uses lasers to digitally strip away trees and vegetation, revealing hidden earthworks and building footprints.
• LiDAR easily detects the rectangular foundations and corner towers of the Pleasance. Built by Henry V half a mile away as a moated banqueting house, this site now looks like nothing more than uneven grassy mounds to a person standing in the field.
• Utility: Aerial views are excellent for showing how the castle interacted with its geography, highlighting the protective streams and the sandstone ridge foundations. Historical photos taken from the air in the 1940s actually helped modern historians fix an incorrect 1975 restoration of the Elizabethan Garden, ensuring the new design perfectly matched the ghostly symmetrical outlines of the original Tudor paths.
• Limitations: While aerial and satellite images clearly show the impressive thickness of the outer walls, they are completely useless for understanding internal spaces. They cannot reveal the vertical layout or internal remodelling, such as the sophisticated three-level design of John of Gaunt's Great Hall.

Synthesising Evidence to Reconstruct the Past

• How do we know exactly what a ruined castle looked like in its prime? Historians must act like detectives, cross-referencing multiple types of evidence to find the truth.
• Because no single source tells the complete story of Kenilworth's transition from a defensive fortress to a luxurious palace, historians use a triangulation method.
• They identify a physical feature on the ground (like joist holes in a wall), check contemporary drawings to see the original roof height, and use modern archaeological plans to confirm the exact construction date.
• Reconstructing the 1570s Elizabethan Garden is a perfect example of this synthesis. Historians successfully merged Robert Langham's detailed 1575 written description with Dugdale's 17th-century ground map and the exact measurements taken during a 2005 archaeological dig to faithfully recreate the lost garden.
• Similarly, combining Hollar's engravings of the Gallery Tower with aerial views of the massive Brays earthworks proves that the causeway served a dual function as both a dam for the Great Mere and a grand tournament ground.
• Evaluating Relative Value: When judging these sources, architect plans are best for understanding intent and room function, while aerial photography is unmatched for studying the wider strategic landscape. However, contemporary drawings are arguably the most valuable single source, as they are the only way to visualise the pre-destruction state with intact roofs and walls.