Rathgar (), is a suburb of Dublin in Ireland. It was originally a village which from 1862 was part of the township of Rathmines and Rathgar; it was absorbed by the growing city and became a suburb in 1930. It lies about three kilometres south of the city centre. Location Rathgar is situated in the southside of Dublin. It lies beside Dartry, Harold's Cross, Rathmines, and Terenure. Other nearby suburbs are Crumlin, Kimmage, Milltown, Ranelagh, and Rathfarnham. The Grand Canal flows to the north. The majority of the area lies within the jurisdiction of Dublin City Council and straddles the postal boundary of Dublin 6. Rathgar is in the Dáil Éireann constituency of Dublin Bay South. History Rathgar, in the Middle Ages, was a farm belonging to the Convent of St Mary de Hogges, at present-day College Green. At the Dissolution of the Monasteries, Rathgar was granted to the Segrave family: they built Rathgar Castle, ownership of which subsequently passed to John Cusacke, who was Lord Mayor of Dublin in 1608. The castle remained in the possession of the Cusack family for over a century, but gradually decayed and was a ruin by the end of the eighteenth century. No trace of it remains today, though it is thought to have been located at present day 44-49 Highfield Road. In 1649 the Duke of Ormonde commander of the Anglo-Irish Royalist army established his camp at Rathgar during the Siege of Dublin. He was then routed at the Battle of Rathmines nearby by English Republican forces under Michael Jones. The village began to develop in the eighteenth century. Rathgar Avenue may be the oldest street, while Highfield Road was developed in 1753. Zion Church and Christ Church Rathgar were built in the 1860s. Amenities Rathgar is a largely residential suburb with amenities that include primary and secondary schools, nursing homes, child-care and sports facilities, and public transport to the city centre. The housing stock largely comprises red-brick late Georgian and Victorian era terraces and much of the area lies within an architectural conservation zone. Dodder Park is located in Rathgar. One of the main schools in the area is The High School, Dublin, which moved to the area from its original location on Harcourt Street in 1971. The High School follows a liberal Anglican heritage, but also has students of Jewish heritage. Other schools include Stratford College on Zion Road, which