The Kingless Land

Aglirta is known as the Kingless Land - once prosperous and peaceful, it has now fallen into lawlessness, studded with feuding baronies engaged in a constant state of war. The only hope for peace lies in the legend of the Sleeping King: destined to rise and restore peace when the Dwaerindim stones are recovered.
Lady Embra Silvertree is the sorceress daughter of a bellicose baron with an eye towards world domination. She has been imprisoned by her father who hopes to use her as a magical battery to fortify his castle. When a pair of good natured rogues attempt to steal one of her jewel encrusted gowns, they are quickly enlisted as allies to help her escape and, with the aid of a shape-shifting cleric, to seek out the Dwaerindim.
Ed Greenwood
Ed Greenwood is known for his role in creating the Forgotten Realms setting, part of the world-famous Dungeons and Dragons franchise. His writings have sold millions of copies worldwide, in more than a dozen languages. Greenwood resides in the Canadian province of Ontario.
Links
Ed Greenwood. Wikipedia.
Photo source: Wikimedia Commons.
Band of Four
Series contains 4 primary works and has 5 total works. Current series reading order on below.