The last name of Wilhelm and Jacob is Grimm.
Wilhelm and Jacob Grimmsy collected Fairy Tales.
The last name of Wilhelm and Jacob, who collected and published a famous collection of fairy tales, is Grimm. They are commonly known as the Brothers Grimm.
Grimm
Grimm
Their last name, and the name they are most known by, was/is Grimm.
I believe they are the Brothers Grimm.
Jacob's middle name was Ludwig Carl Grimm and Wilhelm's middle name was Karl Grimm.
Jacob and Wilhelm Grimm
Christoph Wilhelm Jacob Gatterer died in 1838.
Christoph Wilhelm Jacob Gatterer was born in 1759.
Jacob Heinrich Wilhelm Lehmann died in 1863.
Jacob Heinrich Wilhelm Lehmann was born in 1800.