Heinrich IV
Prince Reuss
Prince Heinrich IV in 2011 at the funeral of Crown Prince Otto von Habsburg
Head of House of Reuss
Period	1945/1962 - 2012
Predecessor	Prince (Fürst) Heinrich XLV
Successor	Heinrich XIV (in pretense)
Born	(1919-10-26)26 October 1919 Ernstbrunn, Austria
Died	20 June 2012(2012-06-20) (aged 92) Ernstbrunn, Austria
Burial	Ernstbrunn, Austria
Spouse	Princess Marie Luise of Salm-Horstmar (1918-2015)
Father	Prince Heinrich XXXIX Reuss
Mother	Countess Antonia of Castell-Castell

Heinrich IV, Prince Reuss (26 October 1919 – 20 June 2012)^[1] was the head of the German formerly princely House of Reuss.^[2]

He was born in Ernstbrunn, Austria, the son of Prince Heinrich XXXIX Reuss and Countess Antonia of Castell-Castell. Heinrich IV became head of the princely family after the previous Prince Heinrich XLV went missing in 1945 and was declared dead in 1962. He lived with his family at Castle Ernstbrunn in Lower Austria. His son, Heinrich, also bought a piece of expropriated property in Eastern Germany.

On 10 June 1954 the prince married Princess Marie Luise of Salm-Horstmar (1918-2015), daughter of Otto, Prince of Salm-Horstmar and Countess Rosa of Solms-Baruth. They had one son and three daughters:^{[citation needed]}

• Heinrich Reuss (b. 14 July 1955), the current head of the family, married to Baroness Johanna Raitz von Frentz, daughter of Jan, Baron Raitz von Frentz and Baroness Marie-Kunigunde zu Hoenning O'Carroll. They have two sons and two daughters.^{[citation needed]}
• Anna Elisabeth Johanette Reuss (b. 29 June 1957)
• Karoline Adelma Henriette Anna Elisabeth Reuss (b. 23 June 1959), married to Carl Philipp, Baron von Hohenbuhel gennant Heufler zu Rasen.
• Espérance Eleonore Anna Elisabeth Reuss (b. 22 July 1962), married to Count Johannes Ferdinand Kinsky von Wchinitz und Tettau.

• The House Reuss - Website Fuerstenfamilien.de (German)
• Guided tour by Prince Heinrich XIV at Castle Ernstbrunn, including interview of Prince Heinrich IV on YouTube - from TV channel ORF2 (in German)