I am interested in this Bishop since he was supposedly the last Bishop of Jerusalem with family ties to Jesus. Seems like their would be more info on him.
I'm not sure they are the same person with different spellings. If talking about this one, probably has to do with his city being sacked and/or destroyed by Titus.
The local tradition of Ancona has identified this saint with the jew named Judas Quiriacus or Kyriakos. They are the same person according to Orthodox tradition.
There was no Jerusalem after 132 a.d. The romans rebuilt the city as a roman military colony naming it Aelia Capotolina. Before that Jerusalem laid in ruins since 70 a.d. After the seige in 135 a.d. the jews were sold into slavery and the rest were forbidden to enter the new city. Jersusalem became a quintessential gentile city.
According to Hegesipus the jewish -christian historian writing in 160 a.d. and the man Eusebius would have quoted from, none of the kindred of the Lord lived past the reign of Trajan