I also subscribe to the Getty e-News. This Rubens and Brueghel
Collaboration may be of interest to you:
"Renowned artists and close friends, Peter Paul Rubens and Jan
Brueghel the Elder created more than 20 paintings together. The two
artists lived near one another, visited each other's studios, and may
have even carried panels back and forth to one another through the
streets of Antwerp."