foundation · 62 · Jerusalem
Hegesippus, writing around 180 and preserved by Eusebius, is unusually specific: after the martyrdom of James, the surviving apostles and disciples of the Lord came together from all directions with those who were kinsmen of the Lord according to the flesh, and they all with one consent pronounced Symeon the son of Clopas worthy of the throne of that see — he being, as they say, a cousin of the Saviour. It is the only place in this dataset's first century where a succession is described as an act rather than asserted as a list, and what it describes is an election by an assembly that included the family. Whether Clopas is the Cleopas of Emmaus, and what the kinship terms mean, are the knot the gloss clopas-and-cleopas sets out. The tenure has stood in this dataset at ordinal 2 with no event under it.
To fill the see of Jerusalem after James was killed.
A second bishop chosen from the Lord's own kin, and the only apostolic succession the sources show being decided.