Complex sentence: The Griqua are a racially and culturally mixed people whose origin goes back to the intermarriages or sexual relations between European colonists in the Cape and the Khoikhoi already living there in the 17th and 18th centuries.
Split into simpler sentences: The Griqua are a racially and culturally mixed people. The genealogy of the Griqua is traced back to the informal marriages or sexual relations between European settlers in the Cape and the Khoikhoi already living there in the 17th and 18th centuries.