Introductions are in order

For the record, I pick up my arms not in service of thy foe. There is something I'd like to know, however. You shan't get much out of me as we stand right now, but if you'd kindly take the time to answer my questions I'd be much obliged to assist in thine battles, and perhaps in a search for the information you so desperately need. A fair warning, this won't be much of a game, nor as exciting, nor as fun, as a few others have been percolating, though you'll find a question or two much as difficult as their own, no doubt.

This first one, for memory: Who is the brother of every man with the name of someone who is now a keepsake?

You get three chances.