The passage stresses that ....... .

For more than 350 years after his death, the outstanding German painter Matthias Grunewald
was almost forgotten. Even today nothing is known of his early life. It is believed that he was
almost 50 years old in 1519, which would mean he was born about 1470, probably in Wurzburg,
Germany. His name first appears in documents from either the town of Seligenstadt or from
Aschaffenburg, to the northwest of Wurzburg. His real name was Mathis Gothardt. Grunewald
was mistakenly given to him by his 17th-century biographer, Joahcim von Sandrart. In about
1509, Grunewald became court painter for the archbishop of Mainz, so most of his paintings and
drawings were of a religious nature.