Complex sentence: Driven mad by the loss of his partner, Galbatorix came close to death, but eventually found his way back to Vroengard, where he demanded that the ruling council of the Dragon Riders grant him a new Dragon.
Split into simpler sentences: Driven mad by the loss of his partner Dragon, Galbatorix came close to death, but eventually found his way back to Vroengard. He demanded that the ruling council of the Dragon Riders grant him a new Dragon.