all the princes —

 kings- —

of kings who are based on their being born in the kshathriya family, and not those who ruled based on their being wealthy etc., —

many kings —

crowned princes —

kings- —

 many kings —

 kings —

 for kings —

 valorous kings —

 being kings (subsequently) —

 (When incarnating as paraṣurāman), having strength and mountain-like tall shoulders, such that the kings (like kārthaveeryārjunan) die, —

the way he went to the court of great kings (such as dhuriyŏdhanā et al) —

kings —

for pāṇdavas, the kings —

 pāṇdavas who are the original kings —

 being kings —