Addedomarus, a king of the Trinovantes tribe (originally centred at Braughing), is the first identifiable ruler of Camulodunon, known from his inscribed coins dating to around 25–10 BC. For a brief period around 10 BC Tasciovanus, a king of the Catuvellauni already issuing coins from Verlamion, also issued coins from Camulodunon, suggesting that the Trinovantes' capital had been conquered by the Catuvellauni, but he was soon forced to withdraw, perhaps as a result of Roman pressure – his later coins are no longer marked with the Latin "REX" (for "king"), but with the Brythonic "RICON" – and Addedomarus was restored. His son Dubnovellaunus succeeded him, but was soon supplanted by Tasciovanus' son Cunobelinus. Cunobelinus then succeeded his father at Verlamion, beginning the dominance of the Catuvellauni over the south-east. Cunobelinus was friendly with Rome, marking his coins with the word "REX" and classical motifs rather than the traditional Gallo-Belgic designs. Archaeology shows an increase in imported luxury goods, probably through the Sheepen site port of Camulodunon, during his reign. He was probably one of the British kings that Strabo says sent embassies to Augustus. Strabo reports Rome's lucrative trade with Britain; the island's exports included grain, gold, silver, iron, hides, slaves and hunting dogs. Iron ingots, slave chains and storage vessels discovered at the Sheepen site appear to confirm this trade with the Empire.