Wacho or Waccho (probably Waldchis) was king of the Lombards before they entered Italy from an unknown date (perhaps circa 510) until his death in 539. His father was Unichis. Wacho usurped the throne by assassinating (or having assassinated) his uncle, King Tato (again, probably around 510). Tato's son Ildchis fought with him and fled to the Gepids where he died. Wacho had good relations with the Franks.
Wacho married three times. His first marriage was to Radegund, daughter of Bisinus, King of the Thuringi. His second marriage was to Austrigusa, a Gepid possibly named after her maternal descent from Ostrogothic rulers. Austrigusa was the mother of two daughters: Wisigarda (who married Theudebert I of Austrasia) and Waldrada (who married firstly Theudebald of Austrasia, secondly Chlothar I, King of the Franks, and thirdly Garibald I of Bavaria). Wacho's third marriage was to Silinga, a Heruli-mother of Waltari.
[source: http://en.wikipedia.org/wiki/Wacho]
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Waccho (d. c. 539), king of the Lombards in the period preceding the invasion of Italy, when they occupied territory roughly coinciding with Austria north of the Danube. Waccho assassinated his uncle Tato andusurped the throne c. 510, ruling for 30 years.
Tato's son and grandson took refuge with the king of a neighbouring people, the Gepidae, making several fruitless attempts to recover rule over the Lombards. Shortly after 536 Waccho made a treaty with the Byzantine emperor Justinian I against the Gepidae. In 539 the Ostrogoth king of Italy, Witigis, hard-pressed by Justinian's general Belisarius,sent ambassadors to Waccho, offering him money in exchange for military aid. Waccho refused, preferring to remain on good terms with Constantinople. Married successively to daughters of the kings of the Thuringians, of the Gepidae, and of the Heruli, Waccho was succeeded by a young son who died during the regency of the Lombard chief Audoin; this regent's son Alboin became the king who destroyed the Gepidae and invaded Italy. [Encyclopaedia Britannica CD '97, WACCHO]