The Roman Catholic Church of the Holy Blood, or the provost, main and parish church of Graz-St. Blut, or Graz City Parish Church for short, is located in the Inner City district of Graz. It is the parish church of the parish Graz-St. Blood in the Deanery Graz-Mitte of the Stadtkirche Graz. The first church on this site was built in 1440 at the suggestion of Emperor Friedrich III. built. This former Corporis Christi chapel was given to the Dominican order a quarter of a century after its completion. From 1478 these extended the small three-aisled chapel by an elongated choir room, it was not completed until 1520. Since the then parish church of St. Aegyd was handed over to the Jesuit order and a new parish church was needed, the Dominicans had to open in 1585 Command Archduke Charles II to vacate their monastery for this purpose, and the Church of Holy Blood was raised to the status of parish church .