Something similar happened to me around the 25 hour mark and it was the scariest thing that has ever happened to me. Im still not sure how tf I survived it, but I barely did.
In subreddit r/kingdomcome
In a post titled:
[KCD1] After 2500h at the first kingdom come I encounter in Skalice a multitudinous combat spawn that I had never seen before with full armor and maximum level bandits ️