in 1280
Precision: year · Rank: normal
No external source identified
THE DATE BEHIND THE NAME
Casimir I, Duke of Cieszyn
noble
Casimir I, Duke of Cieszyn has incompatible recorded birth dates. The main Wikidata statement lists in 1278 in Cieszyn, Poland.
Born
in 1278
An exact age is omitted because the recorded dates are incompatible or not precise enough.
Died: in 1358
Source:
No external source identified
Synchronized from Wikidata on October 5, 2026.
- Birthplace
- Cieszyn, Poland
- Professions
- aristocrat
- Citizenship
- Poland
Incompatible birth dates
Sources disagree: in 1278 (No external source identified) or in 1280 (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.
More about Casimir I, Duke of Cieszyn
Family
- Father
- Mieszko I, Duke of Cieszyn
- Child
- Przemyslaus I Noszak, Duke of Cieszyn
- Sibling
- Viola of Teschen
- Sibling
- Władysław of Oświęcim
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
Where was Casimir I, Duke of Cieszyn born?
Casimir I, Duke of Cieszyn was born in Cieszyn, Poland.