Andronikos desired to make use of Hranislav 's military talents and elevated him to the status of megas tzaousios .
Hranislav had to spend at least a few years imprisoned in Constantinople before Michael 's son and next Byzantine Emperor Andronikos II Palaiologos released him .
Andronikos II Palaiologos desired to make use of Hranislav 's military talents and elevated Hranislav to the status of megas tzaousios .
Hranislav had to spend at least a few years imprisoned in Constantinople before Michael 's son and next Byzantine Emperor Andronikos II Palaiologos released him .