From the BBC
A novelist must be free to "draw appropriately" from historical works without facing a court and having his integrity called into question, he said.
"After devoting so much time and energy to this case, I'm eager to get back to writing my new novel."
Random House chief executive Gail Rebuck welcomed the judgement, saying: "We are pleased that justice - and common sense - have prevailed.
"It is highly unusual and very sad that these authors chose to sue their publishers, especially after 20 successful years."