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Katog Rigdzin Tsewang Norbu (kaH thog rigs 'dzin tshe dbang nor bu) was born in Sa-ngen Sowa (sa ngan bso ba), in Kham, into the Go clan. His father was Dupa Ati Gonpo (rdu pa a ti mgon po) and his mother was Goza Dorje Tso (sgo bza' rdo rje 'tsho). An uncle, Padma Dechen Lingpa (padma bde chen gling pa), a disciple of Katog lama Longsal Nyingpo (klong gsal snying po), declared him an incarnation of the Ta Lama Padma Norbu (ta bla ma padma nor bu). He also received teachings from a nephew of his previous incarnation, Kalzang Orgyen Tenzin (skal bzang o rgyan bstan 'dzin).