Question: From which ethnic tribe hail the Catuvellani, a settlement of whose can be found near the city of St Albans in Hertfordshire?
Related documents: [0]  [DOC] The Catuvellauni were a Celtic tribe or state of southeastern Britain before the Roman conquest, attested by inscriptions into the 4th century. [END] 
[1]  [DOC] St Albans is a city in southern Hertfordshire, England, 20 miles (32 km) north of London, beside the site of a Catuvellauni settlement and the Roman town of Verulamium on the River Ver. It is Hertfordshire's oldest town. [END] 
Answer: 
Celtic tribe
Celtic tribe