YEAR | DATE | EVENT | HEAD OF STATE |
1159 | Duchy - dinasty Piasti | duke Mieszko I | |
1211 | duke Casimiro I | ||
1230 | duke Mieszko II | ||
1246 | duke Ladislao I | ||
1282 | duke Boleslao I | ||
1313 | duke Boleslao II | ||
1356 | duke Boleslao III | ||
1382 | duke Ladislao II | ||
1401 | duke John | ||
1421 | duke Boleslao IV | ||
1437 | duke Boleslao V | ||
1460 | duke Nicola I | ||
1476 | duke Nicola II | ||
1497 | duke Hanus | ||
1532 | Union to Duchy of Slesia |