Knight's Stronghold #6059 — LEGO Castle Set Value
LEGO CastleWhat the Knight's Stronghold #6059 LEGO set is worth — loose, complete, and sealed.
Knight's Stronghold #6059 value — Loose $45 · Complete (CIB) $95 · Sealed (new) $500. Prices updated September 2026.
Theme · LEGO Castle
Live on eBay now
↗ Rising · +28%
Complete-in-box price history
Monthly CIB value, based on sold comps.
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Item details
- UPC / EAN
- 042884060596
- Brand
- LEGO
- Theme
- LEGO Castle
- Set number
- #6059
- Release date
- January 1, 1990
Knight's Stronghold #6059 (LEGO Castle) resale value
A loose Knight's Stronghold #6059 set runs around $45, a complete copy (all pieces + box + instructions) about $95, and a factory-sealed box commands $500.
What drives the price
Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $45 | eBay sold comps |
| Complete (CIB) | $95 | eBay sold comps |
| Sealed (new) | $500 | eBay sold comps |
Frequently asked questions
- What is the best deal for Knight's Stronghold #6059?
- If you need the pieces, the loose version is the best deal at $39.
- How much is the sealed version of this LEGO Castle?
- The sealed, new version of Knight's Stronghold #6059 is listed for $503.
- Can I buy the set complete but not sealed?
- Yes, the complete in box (CIB) version is available for $100.