Rinchen Gyaltsen 's elder half - brother Phagpa enjoyed a close relationship with Kublai Khan .
Rinchen Gyaltsen 's elder half - brother Phagpa was appointed to the title Imperial Preceptor ( Dishi ) in 1270 .
Rinchen Gyaltsen 's elder half - brother Phagpa enjoyed a close relationship with Kublai Khan and was appointed to the title Imperial Preceptor ( Dishi ) in 1270 .