THE DATE BEHIND THE NAME

John I, Marquess of Montferrat

Italian Marquess

John I, Marquess of Montferrat has incompatible recorded birth dates. The main Wikidata statement lists in 1275.

Born

in 1275

An exact age is omitted because the recorded dates are incompatible or not precise enough.

Died: January 9, 1305

Source:

No external source identified

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
sovereign

Incompatible birth dates

Sources disagree: in 1275 (No external source identified) or in 1277 (No external source identified).

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 1277

Precision: year · Rank: normal

    No external source identified

    More about John I, Marquess of Montferrat

    Family

    Sibling
    Irene of Montferrat
    Father
    William VII, Marquess of Montferrat

    All birth date sources

    A source is P248 “stated in” or a non-Wikimedia reference URL. Import-only references do not qualify.

    No external source identified

    Synchronized from Wikidata on October 5, 2026. View Wikidata record

    Questions people ask

    When did John I, Marquess of Montferrat die?

    John I, Marquess of Montferrat died on January 9, 1305.