When was Saint Martina of Rome born?

Saint Martina was a Roman martyr under emperor Alexander Severus. She is a patron saint ofRome.

She was martyred in 226, according to some authorities, more probably in 228, under the pontificate of Pope Urban I, according to others. The daughter of an ex-consul and left an orphan at an early age, she so openly testified to her Christian faith that she could not escape the persecutions under Alexander Severus. Arrested and commanded to return to idolatry, she refused, whereupon she was subjected to various tortures and was finally beheaded.