When he asked his father permission to marry Loeh Tirta , Pan Sangga refused as her genealogy was unclear .
Sangga is then revealed to have fallen in love with Soedana 's half - sister , Loeh Tirta ( known to him as Loeh Ratna ) .
When he asked his father permission to marry Loeh Tirta , Pan Sangga refused as half - sister 's genealogy was unclear .
Sangga is then revealed to have fallen in love with Soedana 's half - sister , Loeh Tirta ( known to him as Loeh Ratna ) .