Sarah Mullally was confirmed as archbishop of Canterbury on Wednesday, becoming the first woman to lead the Church of England.
The worldwide Anglican Communion, which includes the Episcopal Church in the U.S., has no formal head, but the archbishop traditionally has been seen as its spiritual leader.
Mullally, 63, a cancer nurse turned cleric, officially took up the responsibilities of her new job as judges presided over a legal ceremony confirming her appointment, which was announced almost four months ago.
The so-called Confirmation of Election service marks a major milestone for the Church of England, which ordained its first female priests in 1994 and its first female bishop in 2015. The church traces its roots to the 16th century when the English church broke away from the Roman Catholic Church during the reign of King Henry VIII.
