A date. A name. A source.
THE DATE BEHIND THE NAME
High Duke of Poland (1121-1202)
Mieszko III the Old has incompatible recorded birth dates. The main Wikidata statement lists in 1126.
in 1126
An exact age is omitted because the recorded dates are incompatible or not precise enough.
Died: March 20, 1202
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.
Sources disagree: in 1126 (Medieval Lands; w.genealogy.euweb.cz; Encyclopædia Britannica Online) or in 1127 (Medieval Lands; w.genealogy.euweb.cz; Encyclopædia Britannica Online).
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.
Precision: year · Rank: normal
Original calendar: Julian. This broad date cannot be represented as a single Gregorian date; the original value is shown.
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
Mieszko III the Old died on March 20, 1202.