|Birth||27 May 1882 (Bad Berleburg)|
|Death||25 April 1925 (Hanau)|
Richard, 4th Prince of Sayn-Wittgenstein-Berleburg (German: Richard zu Sayn-Wittgenstein-Berleburg) of Sayn-Wittgenstein-Berleburg from 1904 to 1918.
Prince Richard was born on 27 May 1882 at Berleburg, Germany.
On 21 November 1902, at Langenzell, he married Princess Madeleine of Löwenstein-Wertheim-Freudenberg, daughter of Prince Alfred of Löwenstein-Wertheim-Freudenberg and Countess Pauline von Reichenbach-Lessonitz.
His title was de-recognized by the Weimar and other German Republics after abolition of the German Empire in 1918 but lawfully retained henceforth as a surname.
He died as the result of a traffic accident in Hanau on 25 April 1925 at age 42.
- Gustav Albrecht, 5th Prince of Sayn-Wittgenstein-Berleburg, b. 28 Feb 1907, d. 1944 (declared dead in 1969 after being missing in action in Russia, 1944)
- Christian Heinrich, 5th Prince of Sayn-Wittgenstein-Hohenstein, b. 20 Sep 1908, d. 17 Aug 1983
- Prince Ludwig Ferdinand, b. 4 Apr 1910, d. 22 Nov 1943