Questions regarding the apostles James and Jude

[reccanboy]

So we know of James (son of Alphaeus) who is known by Just and Lesser, and he’s known to be the brother of Jude (Acts 1:13), but this can’t be the apostle Jude (Luke 6:16).

One is the “Son of James”, and the other is “Brother of James”.

1, Would this mean that the Epistle of Jude wasn’t written by an apostle?

1. In Eusebius’ Church history 3:11, Symeon son of Clopas (Alphaeus) is said to be a “Cousin”, rather than a “Brother” to Jesus, (James was supposedly son of Alphaeus) Eusebius also said James was: “…known as a son of Joseph” (ibid. 2:1) and Origen said it (Com. Math. 17), would this mean that James the Just isn’t Alphaeus’ son?
2. If James the Just isn’t Alphaeus’ (Clopas) son, then would we have 3 James’ (Greater, Lesser, Just)???

I just posted this to see what you guys think (p.s. I’m Catholic, no flaming!)