John of Arsuf had died in 1258 and was replaced as "bailli" by Geoffrey of Sergines, Louis IX's lieutenant in Acre. Plaisance died in 1261, but as her son Hugh II was still underage, Cyprus passed to his cousin Hugh of Antioch-Lusignan, whose mother Isabella of Cyprus, Alice of Champagne and Hugh I of Cyprus' daughter and Hugh II's aunt, took over the regency in Acre. She appointed as "bailli" her husband Henry of Antioch (who was also Plaisance's uncle), but died in 1264. The regency in Acre was then claimed by Hugh of Antioch-Lusignan and his cousin Hugh of Brienne, and Hugh II died in 1267 before he reached the age of majority. Hugh of Antioch-Lusignan won the dispute and succeeded Hugh II on Cyprus as Hugh III. When Conradin was executed in Sicily in 1268, there was no other Hohenstaufen heir to succeed him, and Hugh III inherited the Kingdom of Jerusalem as well in 1269. This was disputed by another branch of the Lusignan family: Maria of Antioch, daughter of Bohemond IV of Antioch and Melisende of Lusignan (herself a daughter of Isabella I and Amalric II), claimed the throne as the oldest living relative of Isabella I, but for the moment her claim was ignored. By this time, the Mamluks under Baibars were taking advantage of the kingdom's constant disputes, and began conquering the remaining crusader cities along the coast. In 1265, Baibars took Caesarea, Haifa and Arsuf, and Safad and Toron in 1266. In 1268 he captured Jaffa and Beaufort, and then besieged and destroyed Antioch.