After I conquered some English cities, I went for a Cultural Victory using Artifacts. To my surprise, conquered British cities still retain their 6 slots, even though I built the Theatre Districts long after I subjugated them. Don't know how to theme it yet. I'll update this post as soon as I find it. Amusingly enough, it seems the reverse of this thread: https://forums.civfanatics.com/thre...ties-founded-by-england.601850/#post-14577905 Screenshot attached. EDIT: And the city can also support 2 Archaeologists, as in the second screenshot. Manchester already has an Artifact (meaning it already have an Archaeologist, yet is able to build one more.