Stephen IX

Holy See list

Number

154

Regnal name

Étienne IX · Stephen IX

Birth name

Frédéric de Lorraine

Place stated for birth

not stated

Century stated

11

Beginning of the pontificate

2,3.VIII.1057

End of the pontificate

29.III.1058

No biography is added. The Holy See does not give a birth date here, and the end of the pontificate is not turned into a date of death.

Source

Holy See, Pontiffs · consulted on 2026-09-28