A really amazing series, similar to GoT, but still completely different in style.
I have watched Season 1 now and started with Season 2 (was released earlier this month in the UK).
Set in AD 43, the series follows the Roman conquest of Britain — "a mysterious land ruled by wild warrior women and powerful druids who can channel the powerful forces of the underworld." Celtic rivals Kerra and Antedia must work together to fight off the Roman invasion led by Aulus Plautius.
https://en.m.wikipedia.org/wiki/Britannia_(TV_series)