The Quadi was a smaller Germanic tribe about which little definitive information is known. They emerged as an element in the earlier migrations southward that took place near the beginning of the 1st century CE, alongside the more numerous Marcomanni, who they were probably closely related to. They were settled in what is now Moravia and western Slovakia from roughly 40 CE onward. Their frontiers for the next 350 years or more were the Marcomanni to the west, proto-Slavic tribes to the north, Sarmatian Iazgyians[?] and (later) Asding Vandals to the east, and the Roman Empire to the south.

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