1258 - Definition and Overview

Events=

• February 10 - Mongols overrun Baghdad, burning it to the ground and killing 800,000 citizens
• Llywelyn the Last declares himself Prince of Wales. He is the final ruler of an independent Wales, before its conquest by the English.
• John IV Lascaris succeeds his father Theodore II Lascaris as emperor of Nicaea. Due to his young age, he is appointed as regent Michael VIII Palaeologus.

Births

• Osman I, founder of the Ottoman Empire

Deaths

• January or February - Count Meinhard I of Gorizia-Tyrol
• Theodore II Lascaris, emperor of Nicaea

Monarchs/Presidents

• Aragon - James I King of Aragon and count of Barcelona (reigned from 1213 to 1276)