Led by Edwin VanCleef, the Stonemason's Guild was composed of the most skilled builders among men. The Stonemasons helped to rebuild the broken city of Stormwind that was razed by the orcs during the First War. VanCleef and his tradesmen were peerless builders and their work and artistry was evident in the edifices of the Cathedral of Light and Stormwind Keep itself.
However, the nobles of Stormwind ran up a huge debt by expanding the kingdom's military presence through Elwynn and into Stranglethorn. The massive debt crippled the kingdom's economy and stripped VanCleef and his Stonemasons of their promised rewards. After spending years toiling to rebuild the glorious city, the Stonemasons were left broke, forgotten by the city's corrupt officials.
Having personally known Edwin VanCleef my entire life, I can tell you that facing him as a foe is quite a daunting task. You see, he was my childhood friend, and I personally trained him in the ways of the shadows thinking that one day he might consider a career alongside me. If VanCleef is heading up the Defias Brotherhood, may the Light have mercy on our souls.
Master Mathias Shaw
Stormwind Assassin's Guild