high priests

Avodah
1

from wikipedia

The high priests belonged to the Jewish priestly
<https://en.wikipedia.org/wiki/Kohen&gt; families that trace their paternal
line back to Aaron <https://en.wikipedia.org/wiki/Aaron&gt;, the first high
priest of Israel and elder brother of Moses
<https://en.wikipedia.org/wiki/Moses&gt;, through Zadok
<https://en.wikipedia.org/wiki/Zadok&gt;, a leading priest at the time of David
<https://en.wikipedia.org/wiki/David&gt; andSolomon
<https://en.wikipedia.org/wiki/Solomon&gt;\. This tradition came to an end in
the 2nd century BCE during the rule of the Hasmoneans
<https://en.wikipedia.org/wiki/Hasmonean_dynasty&gt;\.\[2\]
<https://en.wikipedia.org/wiki/High_Priest_of_Israel#cite_note-2&gt;

The Jewish Encylopedia
http://www.jewishencyclopedia.com/articles/7689-high-priest
towards the end has a list of all the high priests. In the second Temple
era it is mainly based on Josephus. Note that the only Yochanan in the
entire list is John Hyrcanus (son of Simin Maccabbee)

2

from wikipedia

...

The Jewish Encylopedia http://www.jewishencyclopedia.com/articles/7689-high-priest
towards the end has a list of all the high priests. In the second Temple era it is mainly based on Josephus. Note that the only Yochanan in the entire list is John Hyrcanus (son of Simin Maccabbee)

Like I said before, Onias = Chonyo = Choni = Yochanan = John. These are
all the same name.

3

When the gemara talks about the temple in Alexandria the priest is
idetified as Chonyo. So the gemara seems to distinguish between Chonyo
and Yochanan as does Josephus.

4

No. Sometimes the Gemara uses the name Chonyo, and sometimes Yochanan. Just like Tanach sometimes calls the second to last king of Judah Yechoniahu and sometimes Yehoyachin.

Lisa