Who are the dragonlords, and which of them are still around?
In the Dragon Purge early in the Fifth Age, most of Ansalon was carved into realms ruled over or protected by especially powerful dragons. A few of these dragons traveled to Krynn from another world. For more comprehensive information you’ll want to refer to printed products, expecially the Fifth Age Box. Here is a quick list of them, with the book listed being the one in which they met their final fate.