I am not convinced that all of these are actually virtues, or appropriate, and it's a bit of a strain to get twelve, but...

iustitia
fiducia
sapientia
amicitia
constantia
intellegentia
temperantia
patientia
continentia
misericordia
oboedientia
diligentia

veritas
integritas
castitas
comitas
benignitas/liberalitas
fidelitas
honestas
hospitalitas (?)
pietas
sanitas
perspicuitas

pugnacitas (may be appropriate, but is it a virtue?)

(tenacitas is probably not a virtue - it comes close to meanness... and ditto for humilitas, which means shallowness or insignificance)