Barons and castellans · County of Holland · as at first light, 1 January 1200

Wassenaar

An old Rijnland house with lands in the dunes between Leiden and the sea; Philip of Wassenaar follows William in 1203.

Who he is

Name
Not pinned: Philip of Wassenaar is named on William's side in 1203
Title
Lord of Wassenaar
Since
Not pinned
Born
Not pinned
Family
An old Rijnland noble house.
Confidence
low

Not pinned for 1200.

Overlord

The count of Holland

What it holds

  • Wassenaar and lands in the dunes of Rijnland

How it was acquired

Hereditary.

Allies and rivals

With William's party in 1203.

How things stand that morning

Holds under the count.

Wealth

Dune farms.

Military

No numbers are recorded.

Where the sources disagree

Evidence: Known from 1203 in the sources consulted.

On the map: Rough.

Primary sources for Holland

Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.

  • Annals of Egmond (12th century to about 1205). The house annals of Egmond, the counts of Holland's abbey, and the main native source for Holland around 1200. Read online
  • Chronicle of the abbots of Wittewierum (Bloemhof), Emo of Wittewierum (from 1219 to 1237, continued by Menko to 1273). The chronicle opens only in 1204 with the founding of Emo's Premonstratensian house in the Groningen Ommelanden, so it has nothing for 1200 itself. Read online

Sources and studies

  1. Loon War (en.wikipedia)

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.