|Hunting the Hunter|
It seems that your exploits have not gone unnoticed. Someone is after you and he has powerful friends. Find and kill the target I've marked, hopefully he can provide you with clues. If you can discover your pursuer, defeat him and you will be safe. ~Lorenzo
Ezio Auditore received a contract from Lorenzo de' Medici to assassinate a marked man, in hopes of finding clues to the identity of whomever wanted Ezio dead.
Ezio eliminated the marked target, and subsequently assassinated the bounty hunter, completing the contract.