Wiki on Clementia; "In Roman mythology, Clementia was the goddess of forgiveness and mercy. She was deified as a celebrated virtue of Julius Caesar, who was famed for his forbearance. In 44 BC, a temple was consecrated to her by the Roman Senate. Within this temple stood a cult statute of Caesar and Clementia clasping hands. The was headwear to express Clementia, a crown made of oak leaves, which Caesar is frequently imaged as wearing.
Caesar was considered to have this virtue. In a letter to his friend Atticus, Cicero is discussing Caesar's clementia: "You will say they are frightened. I dare say they are, but Ill be bound they're more frightened of Pompey than of Caesar. They are delighted with his artful clemency and fear the other's wrath." Again in For Deistarus Cicero dicusses Caesar's virtue of Clementia. "Yes, you, Gaius Caesar, are the only conqueror in 34 whose hour of triumph none save combatants have fallen. We, free men born in freedom's fairest clime, so far from finding you a tyrant, have seen in you a leader of unbounded mercy in the day of victory.
There is not much information surrounding Clementia's cult; it would seem that she was merely an abstraction of a particular virtue, one that was revered in conjunction with revering Caesar and the Roman state. "