Frederick I: Did you mean...?

Frederick II (l. 1194-1250 CE) was the king of Sicily (r. 1198-1250 CE), Germany (r. 1215-1250 CE), Jerusalem (r. 1225-1228 CE), and also reigned supreme as the Holy Roman Emperor (r. 1220-1250 CE). He was born in Jesi in 1194 CE but spent...

The Sixth Crusade (1228-1229 CE), which for many historians was merely the delayed final chapter of the unsuccessful Fifth Crusade (1217-1221 CE), finally saw the Holy Roman Emperor Frederick II (r. 1220-1250 CE) arrive with his army in the...

The Schmalkaldic War (1546-1547) was fought between the Protestant Schmalkaldic League and the Catholic armies under Charles V, Holy Roman Emperor, who, having failed to achieve religious unity of his subjects at the Diet of Augsburg in 1530...

The names of John Lloyd Stephens and Frederick Catherwood are forever linked to the Maya and Mayan studies as the two great explorers who documented the ruins from Copan in the south to Chichen Itza in the north. The stories told by Stephens...

Andreas Karlstadt (also given as Carlstadt, l. 1486-1541) was a reformer, theologian, and early supporter of Martin Luther (l. 1483-1546) in the movement that became known as the Protestant Reformation. Karlstadt was one of Luther's most...

The Third Crusade (1189-1192 CE) was launched to retake Jerusalem after its fall to the Muslim leader Saladin in 1187 CE. The Crusade was led by three European monarchs, hence its other name of 'the Kings' Crusade'. The three leaders were...

The Treaties of Tilsit were two peace treaties signed in July 1807 by Emperor Napoleon I of France (r. 1804-1814; 1815) and the monarchs of Russia and Prussia in the aftermath of the Battle of Friedland. The treaties ended the War of the...

The Holy Roman Empire officially lasted from 962 to 1806. It was one of Europe’s largest medieval and early modern states, but its power base was unstable and continually shifting. The Holy Roman Empire was not a unitary state, but a confederation...

The Fifth Crusade (1217-1221 CE) was called by Pope Innocent III (r. 1198-1216 CE) with the objective, like previous crusades, of recapturing Jerusalem from Muslim control; only this time the strategy was to weaken the enemy by first attacking...

The Thirty Years’ War (1618-1648) was the last major European conflict informed by religious divisions and one of the most devastating in European history resulting in a death toll of approximately 8 million. Beginning as a local conflict...