Mary (mother of Jesus)
In Christianity, Mary is the mother of Jesus Christ. She is often referred to as the Virgin Mary because she never had sex before giving birth to Jesus. Due to her position as the mother of the Christ, it is an element of Roman Catholic doctrine that Mary was born without original sin, a doctrine known as immaculate conception.
Intercession of Mary
In the Catholic Church, Mary is held in reverence. Among some Catholics, prayers are offered directly to Mary, which seems to attribute demigod like powers to her.
"O sinner, be not discouraged, but have recourse to Mary in all you necessities. Call her to your assistance, for such is the divine Will that she should help in every kind of necessity."
- — St. Basil 
Mary is considered to have been a virgin when she gave birth to Jesus. This may be based on a mistranslation of an Old Testament prophecy Isaiah 7:14 which actually refers to a "young woman". The desire of the New Testament authors to have Jesus to fulfill prophecy was stronger than their scholarship.