A real Rembrandt...

Today my Vianen sister and I visited a museum in Alkmaar to see paintings from a private collection, the Kremer Collection, containing various paintings by Dutch masters.
 
From the museum's website:
The Kremer Collection is an impressive and well-known private collection of Dutch and Flemish seventeenth-century masterpieces assembled since 1995 by George and Ilone Kremer. The collection includes works by painters such as Rembrandt, Frans Hals, Pieter de Hooch, and Caesar van Everdingen; the collection as a whole is one of world stature. What makes The Kremer Collection unique is not only its artistic value, but also the way the collectors and their son Joel Kremer want to share their passion with a wide audience.
 
This painting was bought in 1995, it was believed to be by another artist. Later, however, it turned out to be a genuine Rembrandt...