A group of martens is called a richness
It's the collective noun used in English to identify a group of martens. See, A murder of crows, a gaggle of geese, and a frenzy of sharks
Reiner Martens's birth name is Dirk-Reiner Martens.
Maria Martens was born in 1955.
Annika Martens is 165 cm.
Colin Martens is 5' 10".
Finja Martens is 166 cm.
Henry Martens is 193 cm.
Nike Martens is 169 cm.
Theodor Martens was born in 1822.
Theodor Martens died in 1884.
Johannes Martens died in 1938.
Johannes Martens was born in 1870.