If he's at all interested in British history, Sharon K. Penman writes some of the best historical fiction I've ever read. One of her series is about the Plantagenets and starts with
Here Be Dragons. Very readable and historically accurate. I haven't read anything from her mystery series, but have read almost all of her straight historical fiction. She's probably my favorite writer in the genre.
I'd also recommend Ken Follett's
Pillars of the Earth for British history and anything by Edward Rutherfurd - Sarum was my favorite, but I've read and loved all of his books.
Even though it won the Man Booker Prize, I'd stay FAR away from Hilary Mantel's Wolf Hall. It was horrid. I got about 4 chapters in and couldn't do it. She refers to multiple characters as "he" without specifying which HE it is. Totally confusing. I remember reading a review that started with "He, he, he. Who the heck is HE?"
I'm a fan of Michael Chabon's
The Amazing Adventures of Kavalier and Clay, much of which takes place in NYC. I don't know if it would be considered pure historical fiction, but I loved it. WWII, the birth of the comic book, wonderfully written. One of the favorite selections in 5+ years of my book club.
I like the idea of going to an indie bookstore and asking for recommendations. I do that, but I also ask the employee for a list of their favorite books so I can get a "baseline" read. I mean, recommendations are all well and good, but how do I know that person doesn't have terrible taste?
