How Many Half Brothers and Sisters Did Jesus Have?

The New Testament names four brothers of Jesus and indicates that he had at least two sisters (whose names do not appear in Scripture). “Is not this the carpenter’s son? is not his mother called Mary? and his brethren, James, and Joses, and Simon, and Judas? And his sisters, are they not all with us? Whence then hath this man all these things? (Matthew 13:55-56).