Something of a link with an English site: Pontdolgoch's name means in Welsh, "bridge over the red meadow": per Wiki, derived from "an ancient, and bloody, battle". An also bloody, but less ancient one, was that of [Market] Bosworth, Leicestershire, in 1485. Its bearing that name: is due to Market Bosworth's being not the nearest, but the most significant, settlement. It has had over time, alternative names: "Dadlington Field", after the geographically nearest village; and Redmore Plain -- which name, I understand, had belonged to the location previously to the battle: the "bloodshed" association being coincidental.