Heinrich Ruzzo Prinz Reuss von Plauen (German: Heinrich Ruzzo, Prinz Reuß von Plauen; 24 May 1950 – 29 October 1999) was a Swiss-born Swedish landscape architect and a member of the formerly sovereign House of Reuss.

[2] Although only a younger son of a minor royal family, when Heinrich XXVI married Countess Viktoria von Fürstenstein (1863–1949) in 1885, under the strict marriage rules then enforced by the Reuss dynasty their children were not allowed to bear the princely title, being designated "Counts of Plauen" instead, while still in the line of succession to the throne of Reuss[1] (The Fürstensteins lacked Uradel status: Viktoria's paternal grandfather, Pierre-Alexandre Le Camus 1774–1824, son of a French laborer residing in Martinique, became foreign minister in Jerome Bonaparte's Kingdom of Westphalia, was ennobled there in 1807 and made a count of the French Empire in 1817)[verification needed].

[3] When the German Empire collapsed at the end of World War I, the reigning Prince Reuss lost his crown along with all the other monarchs whose realms were within Germany.

Called by the Italian name "Ruzzo" within the family, he grew up with his paternal grandfather in Rome, but spent the summers with his mother in Scania.

[1] In 1972, his mother remarried nobleman Theodor "Ted" Ankarcrona,[1] owner of the estate Boserup in Scania and Runsa Castle in Uppland.