Gonfalonier of the Church
The Gonfalonier of the Church or Papal Gonfalonier (Italian: Gonfaloniere della Chiesa, "standard-bearer"; Latin: Vexillifer Ecclesiæ) was a military and political office of the Papal States. Originating from the use of the Papal banner during combat, the office later became largely ceremonial and political.
Source: Wikipedia — Gonfalonier of the Church (CC BY-SA 4.0)