Year 1198 (MCXCVIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe March 8 – Philip of Swabia, son of the late Emperor Frederick I, is elected "King of Germany" by his supporters at Mühlhausen in Thuringia. Archbishop Adolf of Cologne elects Otto of Brunswick, son of Henry the Lion, as Philip's rival. Otto IV is crowned as King of the Romans in Aachen by supporters of the House of Welf. Philip's coronation does not take place until September 8, at Mainz. May 17 – Frederick II, infant son of the late Emperor Henry VI, is crowned King of Sicily. His mother, Queen Constance I becomes regent, while she surrounds herself with local advisors. On November 27, Constance dies in the royal palace at Palermo. She is succeeded by the new pope, Innocent III, who becomes Frederick's guardian and mentor. England John of England captures a party of 18 French knights and many men-at-arms, in the ongoing conflict against France. His brother, King Richard I (the Lionheart) introduces a new Great Seal – in an attempt to keep the war against France funded. The government proclaims that charters previously struck with the old seal are no longer valid and must be renewed with a fresh payment. The office of Lord Warden of the Stannaries is also introduced, to tax the produce of tin mines in Cornwall and Devon. September 27 – Battle of Gisors: Richard I defeats the French forces led by Philip II (Augustus) at Courcelles-lès-Gisors, in Picardy. Richard captures three castles on the border of the Vexin. The French troops, many of them mounted, crowd the bridge leading into Gisors Castle but it collapses beneath them. The French king is among those who plunge into the water in his armor. Many French knights drown, but Philip is pulled to safety. Levant Spring – Amalric I, ruler of Cyprus, marries Princess Isabella I, daughter of the late King Amalric I. A few days later they are crowned as King and Queen of Jerusalem at Acre. On July 1, Amalric signs a truce with Al-Adil I, sultan of Egypt and Syria, securing the Crusader possessions from Acre to as far as Antioch. Japan February 18 – Emperor Go-Toba (or Toba the Second) abdicates the throne in favor of his two-year-old son Tsuchimikado, after a 14-year reign. By topic