Worship of the Battle Standards at Birdoswald/Banna Roman Fort

"To the Standards and to the Divinities of the Emperor the First Aelian Cohort of the Dacians..."

The Dacian garrison at Birdoswald set up an altar to Roman military standards (Latin signum, pl. signi, 'battle standard').  While we have a handful of similar dedications in Britain, this altar may be taken as evidence that the soldiers at Banna actively worshiped their own draco.

https://romaninscriptionsofbritain.org/inscriptions/1904

There is also a marked preference at Banna for the god Jupiter Optimus Maximus.  Of the 44 altars and other votive stones we have found there, a full 22 are to I.O.M. (RIB 1874-1896 inclusive, and 1929a/b; see http://roman-britain.co.uk/places/birdoswald.htm).  It is tempting to relate the Dacian fondness for the Roman sky god to their native bear-god Zalmoxis.  In addition, I've many times pointed out that the story of Arthur's conception finds its parallel in that of Herakles. Zeus/Jupiter is, of course, the father of the Greek hero.