Angels - L

Lady Liberty = The iconic woman with a blindfold and set of weighing scales is actually based off of real encounters with a powerful Celestial. For more info see Lady Justice. 
Angelic Lancer = An Angelic Lancer is a minor Warrior Angel who specializes in striking quickly from above with long-range weapons. These weapons are forged in Celestial materials and damage inflicted by them will always be difficult to heal. 
Leviathan = Ancient beings of primeval chaos, for more info see Leviathan. 
Los Angeles = The 'City of Angels' is aptly named, for it has a long tradition of involvement with Celestials going back well beyond the arrival of the Conquistadors. In fact, Los Angeles is probably the major Archangel stronghold for the entire Western coast of America. 
Loyalist Angels = This is a term for all Angels who remain loyal to God and follow His commands and not their own. Basically, it excludes the likes of the Fallen Angels and the Rogue Angels.
Luminary = Angels of high intelligence and who often seek to bring knowledge and education to the lesser races within creation.