VATICAN CITY, April 25 -- A meeting between Pope Leo XIV and Sarah Mullally, the first woman to lead the Church of England, will highlight the differences in the treatment of women in the two institutions.

Mullally today begins a four-day visit to Rome and the Vatican-her first abroad since being enthroned last month.

Here are some key distinctions:

Catholic Church 

Only men can serve as clergy, whether cardinals, priests or deacons, and of course, the pope has only ever been male.

The late pope Francis appointed women to key administrative positions, including naming the first female prefects of Curia departments.

Sister Simona Brambilla is a prefect of the Vatican office that oversees the world's Catholic religious orders and...