[2][3] According to the early biographer Arnold Houbraken he travelled to Italy and joined the Bentvueghels, an association of mainly Dutch and Flemish artists active in Rome, and adopted the nickname Goedewil (good intention).
[3] Houbraken tells an anecdote about Wilkens' trip to Italy which he made together with the painter Hendrik Frans van Lint from Antwerp.
[4] The pair had set up their parasols and had started drawing in their portfolios to sketch the ruins of the old town of Ronciglione near Rome.
The crowd's movement on the edge of the old medieval part of the town perched on a cliff caused a building to collapse.
[1] His death date is uncertain, but his painting collection was auctioned in Amsterdam on 17 June 1748.