Isabella I of Jerusalem tried to play Isabella and her husband off against him, but Humphrey did homage to the royal couple. Isabella was the daughter of Amalric, King of Jerusalem, by his second wife, Maria Comnena. Maria Comnena (who was a grandniece of the Byzantine Emperor, Manuel I Komnenos) married Amalric on 29 August 1171. Isabella was born before September 1172. Amalric died unexpectedly on 11 July 1174. His son by his first marriage, Baldwin IV, was crowned king two weeks later. Before long, it became obvious that Baldwin suffered from lepromatous leprosy. To secure the succession of the ailing king, his sister,
King of Italy of the Italians" or "King of the Italics") was introduced. After the breakup of the Frankish empire, Otto I added Italy to the Holy Roman Empire and continued the use of the title "Rex Italicorum". The last to use this title was Henry II (1004-1024). Subsequent emperors used the title "King of Italy" until Charles V. At first they were crowned in Pavia, later Milan, and Charles was crowned in Bologna. In 1805, Napoleon I was crowned with the Iron Crown of Lombardy at the Milan Cathedral. The next year, Holy Roman Emperor Francis II abdicated his imperial title. From