The only books I can think of is Shogun & Paradise Lost..
With Game of Thrones (the book series is called Song of Ice & Fire) - try not to get absorbed by the extra characters. Sometimes one may be introduced & take over the story for a chapter or so, but they have little relevance in the grand picture. I loved the books, but sometimes I needed to check the character lists to stay on track. The foreign names are sometimes tricky!