"Ariarathes VI Epiphanes Philopator (Ancient Greek: Ἀριαράθης Ἐπιφανής Φιλοπάτωρ, Ariaráthēs Epiphanḗs Philopátōr; reigned 130–116 or 126–111 BC), King of Cappadocia, was the youngest son of Ariarathes V of Cappadocia and Nysa of Cappadocia.
Ariarathes reigned about 14 years. He was a child at his succession, and for this reason the power was kept by his mother, who acted as his regent. At some point his mother seems to have poisoned all of Ariarathes’ five brothers; but the infant king was saved by people loyal to the dynasty and had Nysa killed. Using this as a pretext, his maternal uncle, King Mithridates V Euergetes of Pontus (150 BC–120 BC), tried to assert control over the country by marrying Ariarathes to Mithridates´ first daughter, Laodice of Cappadocia, who was also Ariarathes´ maternal cousin. Laodice bore Ariarathes one daughter and two sons: Nysa who married King Nicomedes III Euergetes of Bithynia; Ariarathes VII Philometor and Ariarathes VIII Epiphanes." - (en.wikipedia.org 12.12.2019)