Richard von Volkmann was born in 1830.
Richard von Volkmann died in 1889.
Herbert Volkmann on artnetYou are most likely referring to Hans Richard von Volkmann, often referred to as simply Hans Volkmann or Hans von Volkmann. He was a German painter and illustrator born in Halle, germany in 1860 (d. 1927). He was noted for his landscapes, which were primarily of undramatic, pastoral secnes of fields and villages. He was also an illustrator of children's books. You can see a selection of his work on Wikimedia Commons by searching for "Hans von Volkman".
Richard von Schaukal was born in 1874.
Richard von Friesen was born in 1808.
Richard von Helmholtz was born in 1852.
Richard von Metternich was born in 1829.
Richard von Busack was born in 1958.
Richard von Frankenberg was born in 1922.
Richard von Kühlmann was born in 1873.
Richard Volkmann has written: 'Geschichte und kritik der Wolfschen Prolegomena zu Homer'
Richard Von White was born on 1951-08-24.
Richard von Mises was born on April 19, 1883.