Contrary to modern representations, the Greeks and Romans believed their gods to be immortal and omnipotent. They didn't have weaknesses of power (e.g. Superman's kryptonite). They could do whatever they pleased so long as they didn't cross a higher ranking member of the Pantheon.
Eirene is the goddess of peace
The Roman goddess of the hearth was Vesta. The Roman goddess of grain was Ceres.
pie
love.
None were known to her.
There were many deities dealing with water in the Roman mythology. These included Fontus (god of wells and springs), Juturna (goddess of wells, fountains, and springs), Neptune (king of the sea), Salacia (Neptune's queen), Tiberius (the life of the Tiber river), Volturnus (god of the waters), and Coventina (goddess of a specific spring near Hadrian's Wall).
Minerva was the goddess of wisdom and crafts and was recognized in the city of Rome as the goddess of war. She was rational and sometimes a defender of wars. Her weakness was a tendency to be out of touch with her emotions.
Persephone has no weaknesses - she is a Greek goddess.
Eirene is the goddess of peace
The Roman goddess of the hearth was Vesta. The Roman goddess of grain was Ceres.
pie
love.
None were known to her.
The Roman goddess Minerva did not marry. She was a virgin goddess.
Felicitas was the Roman goddess of happiness.
The Roman goddess of the Hunt is Diana. Her Greek equivalent is Artemis.
The Roman goddess of truth was Veritas.