Emperor Henry VI. He then regained officially the title of the King of Jerusalem by marrying Henry II of Champagne's widow, Isabel. Though in name only, this title was something the Lusignan kings were very proud of as it appears on the Cypriot coat of arms. After some skirmishing in Acre with the Sultan of Egypt al-Malkik al-Adil, a treaty was granted in 1204 giving him some advantages in Palestine. It is said that his eating too much fish in one sitting was his cause of death in 1205. Hugh I The kingship then passed to his son, Hugh I (1205–1218). He participated in the useless 5th crusade, and died suddenly in Tripoli. Maria Komnene, dowager queen of Jerusalem, and a daughter of a former Byzantine dux of Cyprus, conducted the negotiations for the marriage of her granddaughter Alisia of Jerusalem to Hugh I of Cyprus, king Aimery's eldest surviving son and successor, in accordance with the agreement their fathers had reached. Champagne's regentess, Blanche of Navarre, supplied Alisia's dowry as she sought to ensure that Alisia would stay in Cyprus rather than attempting to lay claim to Champagne and Brie. Alisia and Hugh I married in the first half of 1210, with Alisia receiving the County of Jaffa as the agreed dowry. Hugh's marriage with Alisia of Jerusalem (daughter of Henry of Champagne and queen Isabella I of Jerusalem) produced only one son, Henry I (1218–1253), but also two daughters. Henry I Henry I became king at the age of 8 months, when his father died. The official regency was undertaken by Henry's mother Alice, but the acting regent was Henry's uncle Philip of Ibelin, who had Henry crowned at the age of 8, to ward off advances from Frederick II, Holy Roman Emperor. When Philip died, the regency passed to Philip's brother John of Ibelin, the Old Lord of Beirut, who maintained it until Henry came of age at 15. When Henry was 12, Emperor Frederick seized the regency, taking it by force from John of Ibelin. However, when Frederick left the island of Cyprus, the popular John of Ibelin rallied forces from the Outremer, and retook the island, which began the War of the Lombards. In the Battle of Aghirda, the much smaller force of Ibelins won a surprising victory over the imperial forces, and the efforts of Frederick. known as the Stupor Mundi proved unsuccessful. King