(1609–1667) was a Roman Catholic prelate who served as Titular Bishop of Bethlehem (1651–1667).
[1][2] Christophoro d'Authier de Sisgau was born in Marseille, France, on 6 April 1609 and ordained a priest in the Order of Saint Benedict.
[3] On 27 February 1651, Christophoro d'Authier de Sisgau was appointed during the papacy of Pope Innocent X as Titular Bishop of Bethlehem.
[3] He served as Titular Bishop of Bethlehem until his death on 17 September 1667.
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