According to Augustus's Res Gestae, two British kings, Dubnovellaunus and Tincomarus, fled to Rome as supplicants during his reign, and Strabo's Geography, written during this period, says Britain paid more in customs and duties than could be raised by taxation if the island were conquered.
Ifølge Augustus' Res Gestae, flygtede to britiske konger, Dubnovellaunus og Tincomarus, til Rom i hans regeringstid, og Strabos Geography, der blev skrevet i hans periode, beskriver at Britannien betalte mere i told og afgifter, end der kunne bliver opkrævet i skat, hvis landet blev erobret.