THE DATE BEHIND THE NAME

Thomas of Lancaster, 1st Duke of Clarence

Prince of England

Thomas of Lancaster, 1st Duke of Clarence has incompatible recorded birth dates. The main Wikidata statement lists October 7, 1387 in Kenilworth, United Kingdom.

Born

October 7, 1387

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

Died: March 22, 1421

Source:

Synchronized from Wikidata on October 5, 2026.

Original calendar: Julian. Displayed date is Gregorian.

Birthplace
Kenilworth, United Kingdom
Birthplace detail
Born at Kenilworth Castle
Professions
military personnel
Citizenship
Kingdom of England

Incompatible birth dates

Sources disagree: October 7, 1387 (Oxford Dictionary of National Biography) or October 7, 1388 (Weir A. Britain’s Royal Families: The Complete Genealogy).

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.

More about Thomas of Lancaster, 1st Duke of Clarence

Family

Sibling
Henry V of England
Father
Henry IV of England
Spouse
Margaret Beaufort, Countess of Somerset
Sibling
John of Lancaster, Duke of Bedford
Sibling
Blanche of England
Sibling
Humphrey of Lancaster, 1st Duke of Gloucester
Sibling
Philippa of England
Mother
Mary de Bohun

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

Where was Thomas of Lancaster, 1st Duke of Clarence born?

Thomas of Lancaster, 1st Duke of Clarence was born in Kenilworth, United Kingdom.

When did Thomas of Lancaster, 1st Duke of Clarence die?

Thomas of Lancaster, 1st Duke of Clarence died on March 22, 1421.