"Richeza of Berg (Czech: Richenza z Bergu; c. 1095 – 27 September 1125) was Duchess of Bohemia from 1111 to 1117 and again from 1120 until 1125, by her marriage with the Přemyslid duke Vladislav I.
She was the daughter of the Swabian count Henry I of Berg (d. 1116) and his wife Adelheid of Mochental (d. 1127), a daughter of the Bavarian margrave Diepold II of Vohburg. Adelheid´s elder brother, Margrave Diepold III, was a loyal follower of Emperor Henry V; his daughter Adelaide married the Hohenstaufen duke (and later Emperor) Frederick Barbarossa in 1147. Richinza was named after her maternal great-grandmother Richwara, wife of Duke Berthold I of Zähringen." - (en.wikipedia.org 29.10.2019)
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