Aislinn

The current Sea Lord, Aislinn, is a phenomenal tactician and implacable foe. under his control the High Elf fleet has gained scores of impressive victories. while none question his successes, it has been noted that Lord Aislinn carries out his duties with ruthless enthusiasm and an air of viciousness that many in the courts of Ulthuan find distasteful.

Determined to stop Norse raids upon Ulthuan altogether, Aislinn has overseen a violent campaign of attacks on the Norscan coastline. warriors of the Sea Guard, bolstered by Shadow Warriors have wiped out entire Norse settlements, spreading confusion and fear along the coast. battle hardened Sea Guard scythe down defenders with volleys of arrows and salvoes of bolts from their Bolt Throwers. Any enemy warriors that manage to survive the onslaught must battle the grim faced Lothern Sea Guard in their serried ranks, spears lowered. once the defenders have fled, or been slain, the settlement is razed to the ground, and the Sea Guard melt away into the morning mists.

Source

 * Warhammer Armies: High Elves (7th Edition) -- pg. 50