Pope Francis broke one of the Vatican’s “stained-glass ceilings” on Monday by appointing an Italian sister as the prefect of a Vatican dicastery for the first time. Here’s what you need to know.

Pope Francis this week made the novel decision to appoint the first-ever woman as prefect of a Vatican department, naming Italian Consolata Sister Simona Brambilla as head of the Dicastery for Religious.

Sister Brambilla, who trained as a nurse before entering religious life, was a missionary in Mozambique in the late 1990s.