A blood relative of Christ, he was martyred in early apostolic times. Succeeding the apostle James, Simeon, the son of Cleophas, was, it may be said, the first bishop of Jerusalem. Under the Emperor Trajan he was arraigned before Atticus, the governor, on charges of being a Christian and a relative of Jesus. For at a certain period, all descendants of David were apprehended. After enduring all types of torture, he was affixed to a cross, even as His Savior. Those present marveled how a man of such advanced age (he was 120 years old) could so steadfastly and joyously bear the excruciating pains of crucifixion. He died on the 18th of February, 106 A.D.
The siege and the destruction of Jerusalem took place during his episcopacy. He accompanied the Christian community to Pella.
— Excerpted from The Church's Year of Grace, Pius Parsch