Note 1259 — Chapter XIX · THE HEBDOMON.
Reading edition
In the case of Phocas, for manifest reasons, the coronation by the patriarch took place in the Church of St. John the Baptist at the Hebdomon.
So also in the case of Zeno, according to Victor Tunnensis, as quoted by Du Cange, ii. p. 173. “Zeno a Leone Augusto filio in Septimo contra consuetudinem coronatur.”