Jean Waller Brune, the head of the Roland Park Country School, will retire at the end of the 2015-16 school year, the school for girls announced Wednesday.
Brune was credited with instituting an international boarding program, creating a one-to-one laptop program, and leading during a time when the school added new buildings.
With 24 years at Roland Park, she is one of the longest serving heads of a private school in the area. She spent 24 years working at the Gilman School, a boys school across the street, before moving to head Roland Park Country.
In a statement, the school said it would conduct a national search for a new head.