Did Mary and Joseph, Jesus' Parents, Have Other Children?
The Roman Catholic Church, and a few other Christian communities, teaches that Mary remained a virgin before, during and after the birth of Jesus, and that she and Joseph has no children together. Many Christian communities that developed out of the Reformation believe that Mary and Joseph had other children.
Some Protestants point to references to Jesus' brothers in Matthew 13:55-56, whereas Catholics read that passage in light of John 19:25 and Matthew 27:56 which, taken together, Catholics see as demonstrating that Jesus' "brothers" were actually more distant relatives.
Many early Christian leaders, such as Hilary of Poitiers and Jerome, held that the "brothers" of Jesus were not his biological brothers.