The Kingdom of Lindsey or Linnuis (Old English: Lindesege) was a lesser Anglo-Saxon kingdom, which was absorbed into Northumbria in the 7th century. The name Lindsey derives from the Old English toponym Lindesege, meaning "Isle of Lind". Lindum Colonia was the Roman name of the settlement which is now the City of Lincoln in Lincolnshire. (Lindum Colonia was shortened in Old English to Lindocolina and then Lincylene.)[1] Lindum was a Latinised form of a native Brittonic name which has been reconstructed as *Lindon (lit. 'pool' or 'lake'; cf. modern Welsh llyn).[2]