Barons and castellans · Other imperial lands · as at first light, 1 January 1200

Faucigny

The lords of Faucigny hold the valley of the Arve and the Giffre between Geneva and Mont Blanc.

On 1 January 1200 the lord is William, not his brother Aymon II, who will succeed him at the end of 1202.

Who he is

Name
William (Guillaume) of Faucigny
Title
Lord of Faucigny
Since
about 1197, on the death of his father Henry
Born
not pinned
Family
Eldest son of Henry of Faucigny (d. about 1197) and Comtesse, lady of Clermont, daughter of Amadeus I of Geneva. His younger brother Aymon II succeeds him late in 1202, still a minor.
Confidence
medium

fr.wikipedia Aymon II de Faucigny.

Overlord

The emperor; the counts of Geneva claim overlordship (recognised by Aymon II only in 1229)

What it holds

  • Castle of Faucigny
  • The Arve valley (Cluses, Chatillon) and the Giffre (Taninges, Samoens)
  • The Sallaz lands north of Faucigny, disputed with the bishop of Geneva

How it was acquired

Hereditary since the eleventh century.

Allies and rivals

Kin of the counts of Geneva; Savoy backs the family under Aymon II.

How things stand that morning

Holds Faucigny; the advocacy of the priory of Chamonix is still Geneva's (it passes to Faucigny in 1202).

Wealth

Pasture, the Arve road toward the Alps.

Military

Castle of Faucigny and Chatillon.

Threats

  • Geneva's claims
  • The bishop of Geneva over the Sallaz

Places of note

  • Castle of Faucigny: Seat

Where the sources disagree

  • The assignment names Aymon II for Faucigny; fr.wikipedia makes his elder brother William lord from about 1197 to late 1202, so Aymon II is not yet lord on 1 January 1200.

Evidence: One modern account; dates approximate.

On the map: Core only; the upper Arve (Sallanches, Chamonix) is not drawn.

Primary sources for Empire

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.

8 more in the sources library for The Rhineland, the Low Countries and the Swiss Lands.

Sources and studies

  1. Aymon II de Faucigny, fr.wikipedia

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