Khondung Ratna Vajra Rinpoche
From Rigpa Wiki
Khondung Ratna Vajra Sakya (Tib. རཏྣ་བཛྲ་རིན་པོ་ཆེ།) was born on 19th November 1974, the fifth of the tenth lunar month in Dehra Dun, India. He is the eldest son of His Holiness Sakya Trizin and a member of Tibet’s noble Khön family who founded the Sakya school in the eleventh and twelfth centuries. Since early childhood he has undertaken the intensive traditional training for lineage holders. He is well known for the brilliance and clarity of his teachings and his fluency and excellent command of English.