in 1137
Precision: year · Rank: normal
Original calendar: Julian. This broad date cannot be represented as a single Gregorian date; the original value is shown.
- Source: Kindred Britain
THE DATE BEHIND THE NAME
William I, Count of Boulogne
English noble
William I, Count of Boulogne has incompatible recorded birth dates. The main Wikidata statement lists approximate.
Born
approximate
An exact age is omitted because the recorded dates are incompatible or not precise enough.
Died: October 11, 1159
Source:
Synchronized from Wikidata on October 5, 2026.
Original calendar: Julian. This broad date cannot be represented as a single Gregorian date; the original value is shown.
- Professions
- feudatory
- Citizenship
- Kingdom of England
Incompatible birth dates
Sources disagree: in 1137 (Kindred Britain) or in 1135 (Oxford Dictionary of National Biography).
The main date retains its own sources. These alternatives overlap neither all other statements nor the main date. Rank is Wikidata editorial priority, not proof.
in 1135
Precision: year · Rank: normal
Original calendar: Julian. This broad date cannot be represented as a single Gregorian date; the original value is shown.
More about William I, Count of Boulogne
Family
- Sibling
- Marie I, Countess of Boulogne
- Sibling
- Eustace IV, Count of Boulogne
- Mother
- Matilda of Boulogne
- Father
- Stephen, King of England
All birth date sources
A source is P248 “stated in” or a non-Wikimedia reference URL. Import-only references do not qualify.
Synchronized from Wikidata on October 5, 2026. View Wikidata record
Questions people ask
When did William I, Count of Boulogne die?
William I, Count of Boulogne died on October 11, 1159.