this alliance would continue under ghazan's successor, oljeitu. in 1305 ilkhan oljeitu promised andronicus ii 40,000 men, and in 1308 dispatched 30,000 men to recover many byzantine towns in bithynia. andronicus ii gave daughters in marriage to toqto'a, as well as his successor uzbek (1312–1341), but relations turned sour at the end of andonicus's reign and the mongols mounted raids on thrace between 1320 and 1324, until the byzantine port of vicina macaria was occupied by the mongols.