Casimir I, Duke of Cieszyn
Casimir I (Czech: Kazimír I. Těšínský, Polish: Kazimierz I cieszyński; * to 1280/1290, † 1358 ) was from 1315 to 1358 Duke of Teschen.
Origin and family
Casimir I was the son of the Duke of Teschen Mesko I. The name of his mother, who died around 1303, is unknown. In 1321 he married Euphemia of Masovia, who gave birth to nine children:
- Anna (1325-1367), married to the Duke of Legnica Wenceslas I († 1364 )
- Wladislaus († 1355 )
- Jolanta Helena († 1364 ), Abbess of St. Klara in Krakow
- Boleslaw († 1356), a canon in Wroclaw, chaplain of the Emperor Charles IV, provost in Prague
- Przemislaus I ( † 1410)
- Agnes († 1371 ) ∞ 1354 Conrad II of Oels († 1403 )
- Johann / Hanus ( † after 1391 ), cleric of the diocese of Breslau
- Siemowit / Ziemowit († 1391 ), Commander of the Hospitallers of small oil from 1372 prior of St. John's Province of Bohemia, Moravia and Poland and the Austrian lands
- Elisabeth ( † 1364 ), a nun in Trebnitzgrund
Life
After the death of his father in 1315 to Casimir received the southwestern part of the Duchy of Teschen, with the city at the center. He initially maintained good relations with Władysław I the Elbow-, the 1320 Polish king. But when this occurred with the support of Lithuanian troops in the Duchy of Auschwitz, Kasimir is turned to the Bohemian king John of Luxembourg. Along with the Dukes Bolko of Falkenberg and Władysław of Bytom - Cosel he went in February 1327 Opava, there to pay homage to King John, who was on a campaign of Brno on Upper Silesia to Cracow. On 18 and 19 February, she gave King John formally their territories, which they then turn were awarded as a fief of the crown of Bohemia by the king.
Casimir wanted to avoid further fragmentation of the Duchy and therefore only saw his son Przemislaus I. ago as his successor. For the remaining sons he chose a religious career. In 1334, acquired by Duke Władysław of Bytom and Cosel the Duchy Sewerien, which he succeeded in extending its sphere of influence.
It is believed that the Casimir of Cieszyn Castle newly built and the town fortified by a city wall. He also supported the economic development of the Duchy by promoting the cities.