Antipater (son of Costobarus & Salome) - Was this son of Salome's father Costobarus or Joseph?

Private User says here: https://www.geni.com/discussions/297900?msg=1764154

This Josephus (Josephus ., Jr.) could be the one mentioned in Flavius Josephus' Jewish War in Book 2, Chapter 5:

CHAPTER 5.

Varus Composes The Tumults In Judea And Crucifies About Two
Thousand Of The Seditious.

2. Thence he marched on to Jerusalem, and as soon as he was but
seen by the Jews, he made their camps disperse themselves; they
also went away, and fled up and down the country. But the
citizens received him, and cleared themselves of having any hand
in this revolt, and said that they had raised no commotions, but
had only been forced to admit the multitude, because of the
festival, and that they were rather besieged together with the
Romans, than assisted those that had revolted. There had before
this met him __Joseph, the first cousin of Archelaus__, and Gratus,
together with Rufus, who led those of Sebaste, as well as the
king's army: there also met him those of the Roman legion, armed
after their accustomed manner; for as to Sabinus, he durst not
come into Varus's sight, but was gone out of the city before
this, to the sea-side. But Varus sent a part of his army into the
country, against those that had been the authors of this
commotion, and as they caught great numbers of them, those that
appeared to have been the least concerned in these tumults he put
into custody, but such as were the most guilty he crucified;
these were in number about two thousand.

(In the edition by William Whiston, downloaded from https://www.josephus.org/works.htm)

Kind regards,

Matthias Wallnöfer

Matthias clarifies further:

As far as I have understood this "Archelaus" should relate to Herod Archelaus (Herod Archelaus ., Ethnarch of Samaria Judaea and Edom) , not Archelaus I., king of Macedonia.(Archelaus I, king of Macedonia)

A few paragraphs earlier, in Chapter 3 we find:

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CHAPTER 3.

The Jews Fight A Great Battle With Sabinus's Soldiers, And A
Great Destruction Is Made At Jerusalem.

1. Now before Caesar had determined any thing about these
affairs, _Malthace_, Are[c]helaus's mother, fell sick and died.
Letters also were brought out of Syria from Varus, about a revolt
of the Jews. This was foreseen by Varus, who accordingly, after
Archelaus was sailed, went up to Jerusalem to restrain the
promoters of the sedition, since it was manifest that the nation
would not he at rest; so he left one of those legions which he
brought with him out of Syria in the city, and went himself to
Antioch. But Sabinus came, after he was gone, and gave them an
occasion of making innovations; for he compelled the keepers of
the citadels to deliver them up to him, and made a bitter search

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I assume that this Malthace (Malthace, of Samaria, King Herod 6th wife), king Herod the Great's (Herod the Great, de-facto King of Judea) wife, was Herod Archelaus and Herod Antipas's (Herod Phillip Antipas ., Tetrarch of Galilee and Perea) mother.

Well, brother-in-law seems like a reasonable approximation perhaps?

or it might be referring to Julius Archelaus his 1st cousin:

Matthias replies:

Hi Sharon,
no, I have thought it differently:

• Herod Archelaus is the son by Herod the Great and Malthace.
• Josephus, Sr. is brother of Herod the Great.
• Josephus, Jr. is son of Josephus, Sr.

So definitely a cousin of the first level.

[Wagner claimed that Josephus, Jr. would be the son of Herod the Great's sister Salome and Herod the Great's uncle Joseph, but also then it would be a cousin of the first level by Salome].

• Herod Archelaus ., Ethnarch of Samaria Judaea and Edom is the son by Herod the Great, de-facto King of Judea and Malthace, of Samaria, King Herod 6th wife
• Josephus ., Sr. is brother of Herod the Great.
• Josephus ., Jr. is son of Josephus, Sr.

[Wagner claimed that Josephus, Jr. would be the son of Herod the Great's sister Salome and Josephus of Judea (uncle of Herod the Great) but also then it would be a cousin of the first level by Salome].

I see what you're saying, Matthias. Yes I agree with you. Thankyou for taking the time to explain. Do you want to add that to Source to the profile? I'll send you management.