Alexios II was forced to recognise Andronikos as his co-Emperor , and was later murdered . The Latin massacre had not been forgotten , twenty years later , when the leaders of the Fourth Crusade found reasons to divert their expedition to Constantinople . Later sources suggest that Renier 's surviving older brother Boniface based his claim to Thessalonica on his late brother 's title
Latin massacre
Massacre of the Latins
Renier of Montferrat