Those participating in the FRAG guided walk near the church at Castor were able to spot the traces of the major Roman building which once occupied the site.

Despite the best efforts of the Castor bell-ringers, Dr Stephen Upex was able to bring the history of the Roman presence in Castor to life – and place it in the context of the broader Roman presence in Britain.

It appears that the remnants of the Roman “Praetorium” were adopted for use as a nunnery by St Kyneburgha so there is a history of Christian worship which goes back close to (if not right to) the Roman era.

One of the early archaeologists to explore and document Roman Castor was Edmund Artis. His famous book of 60 plates has been recently made available on the new website of the Nene Valley Archaeological Trust.

Find the Durobrivae of Antoninus at NVAT