Jesus had four brothers:
James,
Joseph,
Judas, and
Simon.
The Gospels also mention sisters, but not how many Jesus had (Matthew 13:55; Mark 6:3). These children were probably born to Joseph and Mary after the virgin birth of Jesus. However, some Christians believe that Mary remained a virgin throughout her life. According to this view, Joseph was a widower who already had children from an earlier marriage when he married Mary.