Thanks for your question.
Yes, Jesus did have brothers and sisters but they were only his half-brothers and half-sisters. Joseph would have been their fatherand Mary their mother.
Of course, the Father of Jesus was God Himself. His half-brothers' names were James, Joses, Simon, Judas (not Judas Iscariot! This one wrote the epistle of Jude which occurs just before the book of Revelation.) He had sisters too but they are not mentioned by name. See Matthew 13:55; Mark 6:3.
It is possible that the person named as Mary the mother of James and Salome in Mark 16:1 is the same as Mary the mother of Jesus. In that case, one of the Lord's sisters would be named Salome.
Galatians 1:19 (cp Acts 12:17; Acts 15:13) James, the Lord's brother, became very influential among the Christians of the first century not just because he was the half-brother of Jesus but because of his wisdom and leadership qualities. Some scholars feel he is responsible for writing the epistle of James.
I hope you have found this helpful.