In the book by H.H. Scullard. Roman Britain Outpost of the empire. Page 35 The east Riding of Yorkshire, however, was held by the Parisi, an iron age people who had been joined by other invaders from the Seine Marne district, as shown by their custom of chariot burials, and by the name which they shared with their mother tribe in Gaul. Page 50 Speeks of tribes transition to civitas. Civitas of the Parisi at Brough/on/ Humber (Petuaria).Page 51 repeats p.50 Page 90 speeks of around AD 131 a dedication reads: 'Civitas of the Parisi.For the honor of the divine house of the emperor... Antoninus Pius, father of his country, three times consul, and to the deities[numinibus] of the emperors, Marcus Ulpius Januarius, aedile of the vicus of Petuaria, presented this stage [prosaenium] at his own expense.'
Page 24 shows a map of tribal divisions of Britian the Parisi Petuaria (Bough) is present on this map. Search the internet for subjects Galic Celtic tribes tribes of britian with parisi attached CIAO RONALDO