Is Defending the Bride your website? I didn’t know that.
Yes, I see that your answer is four, and that you identify “his mother’s sister” (“sister” here meaning “cousin”) as Salome, Zebedee’s wife. Your diagram showing the family tree lists your sources as follows:
(Nicephorus Callistus [Historia ecclesiastica, 2.3. PG 145.760, A translation from Charles Wheatly, A Rational Illustration of the Book of Common Prayer , 1794, p. 63.] Also see Hippolytus of Thebes, [Migne’s Patrologia Graeca PG 117,] Andrew of Crete, Epiphanius Monachus, and Andronicus)
May I ask which of these sources explicitly states the precise degree of kinship between Salome and Mary? And a follow-up question. How can you be certain that the information is correct?