From Lexicanum

The Emperor Class Battleship is a command ship and a carrier combined together. It is one of the oldest designs still in use, due to the discovery of Divine Right fused into a Space Hulk for some ten thousand years.¹

The main armament of the Emperor class is made up of its 8 squadrons of attack craft. These are able to roam far from the ship, to engage enemy capital ships that would be out of range, or otherwise non-viable targets for the ships weapons batteries¹.

Notable Emperor Class ships include:

• Divine Right seen during the Gothic War.¹
• Dominus Astra
• Legatus Stygies
• Lord of Light

Sources

• ¹:Battlefleet Gothic Rulebook p106

Vessels of the Imperial Navy

Type	Design	Class
Capital Ships	Battleships	Apocalypse • Emperor • Oberon • Retribution
	Grand Cruisers	Avenger • Exorcist • Vengeance
	Battle Cruisers	Armageddon • Mars • Overlord
	Cruisers	Dictator • Dominator • Gothic • Lunar • Tyrant
	Light Cruisers	Dauntless • Defiant • Endeavour • Endurance
Escorts	Frigates	Sword • Firestorm
	Destroyers	Cobra • Falchion
	Freighters	Armed Freighter • Defense Monitor • Escort Carriers • Fuel Transport • Q-Ship • Troop Transport
Small Craft	Space	Fury Interceptor • Starhawk
	Planetary	Lightning • Marauder Bomber • Marauder Destroyer • Thunderbolt • Vulture Gunship
	Transport	Aquila Lander • Arvus Lighter • Valkyrie