Browse
- Sets
- All Sets
- New Sets
- Recently Retired Sets
- Sets Retiring Soon
- Sets Available Soon
- Set Release Rumors
- Minifigs
- All Minifigs
- New Minifigs
- Recently Retired Minifigs
- Minifigs Retiring Soon
Deals
Analysis
- Sets
- Themes
- Subthemes
- Years
- Most Valuable
- Most Expensive
- Most Owned
- BE 100 Index
- Minifigures
- Most Valuable
- Most Owned
My CollectionSign In or Up

Sets
Castle
Knights' Kingdom II
King Mathias

8790 LEGO Knights' Kingdom II King Mathias

Name: LEGO Knights' Kingdom II King Mathias
Brand: LEGO
SKU: 8790-1
Availability: InStock
Rating: 4.60 (24 reviews)

Images 2

8790 LEGO Knights' Kingdom II King Mathias

LEGO 8790 King Mathias is a Castle set currently valued at $18 for new and sealed sets. Annual appreciation has averaged 2.75% since release. Used copies are valued between $14 and $20 depending on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set King Mathias since June 2016. Very high accuracy

LEGO 8790 King Mathias is a Castle Knights' Kingdom II set released in 2004, containing 44 pieces. The set builds a large posable action figure of King Mathias, the king of Morcia from the Knights' Kingdom storyline. It includes armor elements along with a sword and shield.

A new and sealed King Mathias is currently valued at around $18, with annual growth of approximately 3%. The average used price is $17 for those in good overall condition. Based on current trends, this set could be valued near $19 within the next year.

All regions

All regions 2
United States 2

For Sale (New/Sealed)

	(US) Amazon listing for King Mathias	$19.07 +5.0%
	(US) Castle: King Mathias (8796)	BrickEconomy Choice $26.24 +44.5%

All regions

All regions 6
United States 5
Germany 1

For Sale (Used)

	(US) Used - CASTLE - KNIGHT'S KINGDOM KING MATHIAS #8796	$12.97 --23.8%
	(US) Used - Castle Knights Kingdom King Mathias (8796) (No Cape)	$14.40 --15.3%
	(DE) Used - Knights Kingdom 8790 - King Mathias Original Packaging + Instructions - Buildi...	$17.41
	(US) Used - Vintage LEGO Knights Kingdom 8790 King Matthias - 99% Complete No Cape	$18.00
	(US) Used - 8796 Castle Knights Kingdom KING MATHIAS Replacement Pieces	$19.00
	(US) Used - Castle Knights Kingdom set 8796 King Mathias figure Complete	$19.95

Knights Kingdom II Wave 1 Action Figure Sets


	8770 Danju Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 42 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $7.99 Value $19.75 Growth +147.2% Annual growth 4.0% I own this set I want this set

	8771 Jayko Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 45 Availability Retired Buy this set at Amazon eBay	Retail $7.99 Value $57.44 Growth +618.9% Annual growth 5.3% I own this set I want this set

	8772 Rascus Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 46 Availability Retired Buy this set at Amazon eBay	Retail $7.99 Value $26.42 Growth +230.7% Annual growth 4.0% I own this set I want this set

	8773 Santis Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 46 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $7.99 Value $30.85 Growth +286.1% Annual growth 6.3% I own this set I want this set

	8774 Vladek Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 48 Availability Retired Buy this set at eBay	Retail $7.99 Value $29.07 Growth +263.8% Annual growth 6.0% I own this set I want this set

	8782 Danju Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 46 Availability Retired Buy this set at eBay	Retail $7.99 Value $39.62 Growth +395.9% Annual growth 4.0% I own this set I want this set

	8783 Jayko Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 49 Availability Retired Buy this set at Amazon eBay Bricklink	Retail $7.99 Value $51.11 Growth +539.7% Annual growth 4.7% I own this set I want this set

	8784 Rascus Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 50 Availability Retired Buy this set at eBay	Retail $7.99 Value $38.50 Growth +381.9% Annual growth 4.2% I own this set I want this set

	8785 Santis Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 50 Availability Retired Buy this set at Amazon eBay	Retail $7.99 Value $33.61 Growth +320.7% Annual growth 6.8% I own this set I want this set

	8786 Vladek Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 52 Availability Retired Buy this set at Amazon eBay	Retail $9.99 Value $25.00 Growth +150.3% Annual growth 2.5% I own this set I want this set

	8809 King Mathias Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces 44 Availability Retired Buy this set at Amazon eBay	Retail $9.99 Value $29.82 Growth +198.5% Annual growth 4.4% I own this set I want this set

Sets in Castle / Knights' Kingdom II


	8781 The Castle of Morcia Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 637 / 8 Availability Retired Buy this set at eBay	Retail $89.99 Value $558.12 Growth +520.2% Annual growth 6.6% I own this set I want this set

	8780 Citadel of Orlan Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 442 / 4 Availability Retired Buy this set at eBay	Retail $49.99 Value $244.39 Growth +388.9% Annual growth 5.5% I own this set I want this set

	8779 The Grand Tournament Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 312 / 3 Availability Retired Buy this set at eBay	Retail $29.99 Value $105.74 Growth +252.6% Annual growth 5.7% I own this set I want this set

	8800 Vladek's Siege Engine Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 192 / 2 Availability Retired Buy this set at Amazon eBay	Retail $19.99 Value $125.36 Growth +527.1% Annual growth 5.9% I own this set I want this set

	8799 Knights' Castle Wall Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 178 / 3 Availability Retired Buy this set at Amazon eBay	Retail $19.99 Value $145.65 Growth +628.6% Annual growth 5.0% I own this set I want this set

	8778 Border Ambush Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 177 / 2 Availability Retired Buy this set at Amazon eBay	Retail $19.99 Value $161.42 Growth +707.5% Annual growth 8.0% I own this set I want this set

	8777 Vladek Encounter Theme / Subtheme Castle / Knights' Kingdom II Year 2004 Pieces / Minifigs 42 / 2 Availability Retired Buy this set at eBay	Retail $8.99 Value $83.73 Growth +831.4% Annual growth 8.8% I own this set I want this set

My Collection

I own this set

I want this set

Set Details

Set number

8790-1

Name

King Mathias

Theme

Castle

Subtheme

Knights' Kingdom II

Year

2004

Availability

Retired

Pieces

44 (PPP $0.23)

Set Pricing

Retail price

$9.99

New/Sealed

Value

$18.16

Growth

+81.78%

Annual growth

+2.75%

90-day change

1.05%

Used

Value

$17.01

Range

$13.83 - $20.41

Quick Buy

eBay

Buy

Lowest price

$26.24

Amazon

Buy

Price

$19.07

*Listings are for new/sealed sets.

Set Predictions

New/Sealed

Today's value

$18.16

1 year forecast

$18.66+2.75%

5 year forecast

$20.64+13.64%

$20

$21

8790 King Mathias is projected to be valued between $20 - $21 within five years.

Insights

Released long-retired in the Knights Kingdom II Castle line, King Mathias (set 8790) carries character-specific prints and a metallic color scheme that attract dedicated collectors, and its low remake risk supports steady scarcity-based interest while niche demand for constraction limits broader market strength.

Set Facts

The set includes a large figure of King Mathias. King Mathias was the king of Morcia. He had a fierce rivalry with Vladek.

Regional Retail Prices (LEGO.com/Store)

United States

$9.99

United Kingdom

£7.99

Europe

€5.99

Australia

$15.99

Barcodes

EAN

5702014419698

King Mathias Reviews

24 reviews

4.6

Collectors

Investors

Brickset

King of Morcia — “This is the first version of the first action figure of a king, the King Mathias. Have features like the gold color, don't shine very, but with the dark blue is great. The crown is included, don't looks like a real one, but can be putted easily and shows the yellow Lego... More face. The shield have a lion's head design, included previously in great sets of older knights kingdom”

Full review at brickset.com

Classic-Castle

“This brick built king has moving joints, a cape, a crown, a lion shield, and a sword. The set was sold exclusively at Target and on Shop At Home.”

Full review at www.classic-castle.com

Subtheme Analysis

Castle / Knights' Kingdom II

Sets

Years

2004 - 2006

Annual growth

+4.93% (this set +2.75%)

This set's annual growth (CAGR) vs. subtheme

Community Stats

King Mathias currently ranks #38 out of the top most owned sets in Castle Knights' Kingdom II.

#1Vladek's Dark Fortress

#2The Castle of Morcia

#3Vladek Encounter

#4Border Ambush

#5The Grand Tournament

#38King Mathias

#39Sir Kentis

#40Dracus

About Castle Knights' Kingdom II

The Castle theme is one of LEGO’s primary themes first introduced in 1978 and based around medieval life with castles and knights. It is currently the third longest-lived theme in LEGO history. Over the years it saw numerous changes thus introducing various fantasy elements.

Knights' Kingdom II consists of 51 sets that ran from 2004 to 2006. As of today, 8781 The Castle of Morcia is the most valuable Knights' Kingdom II set with an estimated new/factory sealed value of $558.

Set Pricing Models

BrickEconomy uses a number of methods to determine the value of a set.

New/Sealed

Machine Learning/AI Model

Value (today)

$18.16

Value (in a year)

$18.66

Value (in 2 years)

$19.16

Accuracy

0.820000 High

Used

Machine Learning/AI Model

Value (today)

$17.01

Value (low range)

$13.83

Value (high range)

$20.41

Accuracy

0.765000 High

To learn more about how we calculate pricing and forecasting, check out our article on BrickEconomy’s Approach to LEGO Pricing and Future Value Predictions.

Region · United States (USD)

Theme · Light

Explore

Sets Minifigs Deals

About Us

About BrickEconomy Contact Us Support Us

Helpful Links

FAQs Widgets Sitemap

Follow BrickEconomy

Facebook

Twitter/X

Instagram

LEGO, the LEGO logo, the Minifigure and the brick and knob configurations are trademarks and/or copyrights of the LEGO Group of companies which does not sponsor, authorize or endorse this site.
BrickEconomy, the BrickEconomy logo and all content not covered by The LEGO Group's copyright is, unless otherwise stated, ©2026 BrickEconomy.

Change Region

Changes the pricing currency and date formats to a specific region. Adjusts pricing and date formats to region.