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From Rodovid EN

Lineage	Hamengku Buwono VII / Hamengku Buwono VIII
Sex	Male
Full name (at birth)	Raden Mas Muhammad Bayu Abisetia [Hb.8.6.5.2.2]
Parents ♀ Raden Ajeng Retno Hastiyanti [Hb.8.6.5.2] [Hamengku Buwono VII / Hamengku Buwono VIII]

From grandparents to grandchildren