D'Youville Academy is a historic school

School

A school is an institution designed for the teaching of students under the direction of teachers. Most countries have systems of formal education, which is commonly compulsory. In these systems, students progress through a series of schools...

 building and nunnery located at Plattsburgh in Clinton County, New York

Clinton County, New York

Clinton County is a county located in the U.S. state of New York. As of the 2010 census, the population was 82,128. Its name is in honor of the first Governor of New York as a state, George Clinton. Its county seat is Plattsburgh.-History:...

. It was built about 1878 and is a -story, cruciform

Cruciform

Cruciform means having the shape of a cross or Christian cross.- Cruciform architectural plan :This is a common description of Christian churches. In Early Christian, Byzantine and other Eastern Orthodox forms of church architecture this is more likely to mean a tetraconch plan, a Greek cross,...

 plan brick structure on a raised stone foundation. The facade features a rounded 2-story bay, a five gable roof dormer, and Mansard roof

Mansard roof

A mansard or mansard roof is a four-sided gambrel-style hip roof characterized by two slopes on each of its sides with the lower slope at a steeper angle than the upper that is punctured by dormer windows. The roof creates an additional floor of habitable space, such as a garret...

. The Academy was founded in 1860 and operated by the Gray Nuns of Ottawa

Grey Nuns

The Order of Sisters of Charity of Montreal, formerly called The Order of Sisters of Charity of the Hôpital Général of Montreal and more commonly known as the Grey Nuns of Montreal, is a Canadian order of Roman Catholic religious sisters...

, founded by Saint Marie-Marguerite d'Youville

Marie-Marguerite d'Youville

Saint Marguerite d'Youville was a French Canadian widow who founded the religious order the Order of Sisters of Charity of Montreal, commonly known as the Grey Nuns of Montreal...

 (1701-1771). The Academy has since been folded into the Seton Catholic Central High School

Seton Catholic Central High School (Plattsburgh, New York)

Seton Catholic Central High School is a private, Roman Catholic high school in Plattsburgh, New York. It is located within the Roman Catholic Diocese of Ogdensburg.-Background:...

.

It was listed on the National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

in 1982.