Maroboduus (born c. in 30 BC, died in AD 37), was king of the Marcomanni. The name "Maroboduus" can be broken down into two Celtic elements, māro- meaning "great" (cf. Welsh mawr, Irish mór), and bodwos meaning "raven" (cf. Irish badhbh). As there was extensive mingling of Germanic tribes and Celts in this period, a Germanic or mixed Germanic-Celtic tribe led by a man with a Celtic name would be nothing unusual.
Maroboduus was born into a noble family of the Marcomanni. As a young man he lived in Italy and enjoyed the favour of the Emperor Augustus. The Marcomanni had been beaten utterly by the Romans in 10 BC. About 9 BC Maroboduus returned to Germania and became ruler of his people. To deal with the threat of Roman expansion into the Rhine-Danube basin he led the Marcomanni to the area later known as Bohemia to be outside the range of the Roman influence. There he took the title of a king and organized a confederation of several neighboring Germanic tribes. He was the first documented ruler of Bohemia.