The second son of the Imperial Commander of Lostan, Parol was destined to enter the Navy from a young age. A veteran of many campaigns, he is known to be an expert strategist and planner. During the Third War for Armageddon, Parol helped turn the tide of the combat by setting up a very tight blockade around Armageddon. This, combined with the actions of the Glorious Age battlegroup and an ingenious "sneak attack" tactic that involved battleships approaching Ork space hulks while powered down, cut the number of Ork reinforcements significantly. However, the Orks could still use their tellyporta technology to land reinforcements from a transport ship hidden in the system. Destruction of this vessel became Parol's main preoccupation.
When a particularly impressive space hulk was detected hiding in the debris of Mannheim Station, Parol led the chase personally. The capabilities of the hulk were so superior to anything encountered before that Parol was convinced it was the main Ork Mekboy vessel and probably carried the arch-mekanik Orkimedes himself. Parol's vessel attempted to initiate a boarding action on the space hulk just as it slipped into the warp. As yet, no trace of either ship has been found; Admiral Parol is believed to still be in pursuit of Orkimedes.
- Battle for Armageddon, pg. 25