Conversation so far:
What was Basel?
Holbein bought a house in Basel, in St Johanns-Vorstadt.
What did he use the house for?
He presumably returned home to preserve his citizenship, since he had been granted only a two-year leave of absence.
What was significant about the house?
Enriched by his success in England, Holbein bought a second house in the city in 1531.
What other things happened during this period?
During this period in Basel, he painted The Artist's Family.
What was significant about that painting?
Art historian John Rowlands sees this work as "one of the most moving portraits in art.

Question: What else did he say about the painting?
Self-contained rewrite: Aside from Hans Holbein the Younger's home, what else did Hans say about the painting?