The Aegis-class heavy cruiser Patrick Henry was a WarShip in service with the Star League Defense Force. It was one of the Star League vessels that intervened in a space battle between the Federated Suns' carrier WarShip Enterprise and the Draconis Combine's flagship, the modified Farragut-class Ryu at the zenith jump point of the neutral New Mendham system on 31 December 2601.
When the SLDF-controlled space station Prosperity and the Baron-class destroyers Templeton and Lancaster could not prevent the situation from escalating, reinforcements were called in in the form of two Aegis-class cruisers, the Patrick Henry and the Michael Collins. The two cruisers jumped right into the battle zone and immediately moved towards the Enterprise and the Ryu, respectively, launching boarding craft while Commodore Brubaker (from aboard Prosperity station) once again ordered the combatants to stand down.
In response to this, the Ryu revealed that it was upgraded with a Lithium-Fusion Battery, powering up its Kearny-Fuchida Drive and jumping out of the system. The Patrick Henry opened fire on the Ryu with its autocannons but could not prevent the jump and subsequent destruction of several boarding craft near the Ryu.
The Patrick Henry only appears in the German-only novel En Passant. As a foreign-language product, this novel is not currently counted among the canonical BattleTech sources. It is an official BattleTech product though, and as such should be regarded as apocryphal.
By extension, information from this source—in this case, the Patrick Henry and its exploits—must be considered apocryphal as well.
- En Passant, p. 304