UO Second Age

I was determined to not ask for help with this, but 5 clues in I get one that I don't even understand. It says 'Where Lord British fellt rainz for the first time'. And yes, it's spelled fellt rainz which i assume is the hint, but I'm stumped. I went to every place in the castle, went to all stables in brittain, other than just walking the entire map, I don't know where else to start next.

Anyone offer a small hint to what I am supposed to be looking for?

I'll give you a hint: Rainz was the player who killed Lord British during the beta (alpha?) stages of UO. There are many screenshots on the web of this incident - look them up and you'll see where it happened.

OMG I found that on wikipedia, but didn't see anything about Rainz. I thought LB killed himself with fire field. Thanks, at least I know that I was almost on the right track when I started looking into LB's past