Gillis van Valckenborch or Egidius van Valckenborch was a Flemish painter and draughtsman who spent most of his career in Germany. He was a member of the van Valckenborch dynasty of painters who painted mainly landscapes. Unlike his family members, he is mainly known for his large-scale compositions with many swirling figures depicting scenes from ancient history or mythology. While his landscape drawings evidence his interest in landscape art no landscape paintings have been attributed to him.

Marten van Valckenborch or Marten van Valckenborch the Elder, was a Flemish Renaissance painter, mainly known for his landscapes and city scapes. He also made allegorical paintings and some portraits. After commencing his career in the Spanish Netherlands, he later migrated to Frankfurt in Germany where he and other members of his extended family of artists played an important role in local artistic developments.