Derek Proudmoore was the first son of Grand Admiral Daelin Proudmoore, and elder sibling of Tandred and Jaina. Being the eldest son, Derek was first in line to inherit the Merchant-Kingdom of Kul Tiras. (DotD #?) Kurdran Wildhammer and his gryphon riders joined the battle shortly afterward, killing several dragon riders while their gryphons helped slaughter the dragons. The remaining dragon riders fled and were pursued by Kurdran and his brethren, allowing Admiral Proudmoore to focus on destroying the orcish navy, ensuring his son's death wasn't in vain.