Thanks for replying. Yes, the Legion Hanovrienne does seem the most likely candidate as it had amalgamated many of the other German units. I also noticed the Regiment de Prusse on the order of battle. There were a couple of men that died of wounds a few days later but I didn't include them as the anecdote, if it is to be believed, implies killed rather than wounded. It reads as if Napier wasn't actually present when the officer was looking for his brother so the tale may have been altered in the telling. I have one memoir of a soldier in the Legion Hanovrienne present at Bussaco and he doesn't mention anything.

The other problem I have is the vast inconsistencies in the spelling of names, and the difficulty in deciphering the handwriting means the spelling of the brother may be slightly different. I've noticed a couple of instances where men who have served both in the 5/60 and French service the spelling in the French documents is more French, if you know what I mean.

I think the mystery will not be easily solved.

Thanks for your help.