Complex sentence: The Rose of Hildesheim or 1000-year old rosebush or Millenium rose or whatewer is her name grows on a wall of the St. Mary's Cathedral, a Catholic cathedral in Hildesheim, Germany.
Split into simpler sentences: The Rose of Hildesheim is also known as the 1000-year old rosebush or Millenium rose. It grows on a wall of St. Mary's Cathedral, a Catholic cathedral in Hildesheim, Germany.