Mythic introduced three new lawn trophies in version 1.90:

Albion Aniversary Trophy
Hibernia Aniversary Trophy
Midgard Aniversary Trophy

(The names are mispelled that way in the game.)

There are no mobs associated with these trophies. You get them simply by talking to an NPC (the census overseer outside the king's throne room). Your character must be level 40 or higher, and the account must have been played for five years or more.