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| | Dukes of Silesia -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-11) |
 | | 1246-1281 Ladislaus I (Władysław I) 1281-1313 Bolko I (Bolko I) 1313-1316 Boleslaus, Bolko II and Albert (Bolesław, Bolko II, Albert) |
 | | 1437-1439 Nicholas I and John I (Mikołaj I, Jan I) 1439-1476 Nicholas I (Mikołaj I) 1476-1497 John II the Good and Nicholas II (Jan II Dobry, Mikołaj II) |
 | | Upto 1290 Cieszyn belonged to the Duchy of (additional info and facts about Raciborz) Raciborz |
| www.absoluteastronomy.com /encyclopedia/d/du/dukes_of_silesia.htm (861 words) |
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