Question: Are Gabriel Grégoire and Aert Van Der Neer from the same country?
Sentence (from "Aert van der Neer"): Aert van der Neer, or Aernout or Artus( c. 16039 November 1677), was a landscape painter of the Dutch Golden Age, specializing in small night scenes lit only by moonlight and fires, and snowy winter landscapes, both often looking down a canal or river.
Relevant evidence: Yes