Is the Galleria Doria Pamphilj a State Museum?

What that rules out
Italy’s Domenica al Museo opens state museums free on the first Sunday of the month, and Rome runs a parallel scheme for its own municipal museums. A privately owned family collection sits in neither network, so neither scheme applies here. Worth knowing too: on those Sundays, free does not mean walk-in at the places it does cover — the Borghese and the Pantheon still require booking.
The Roma Pass question comes up constantly. This gallery is not listed on the official Roma Pass page, nor on the Omnia card, and both passes are built around the state and municipal networks. I am not going to state flatly that it is refused, because I have not seen anyone state that; what I can say is that it is not listed, and I would plan on buying entry here separately. How entry works.
The most useful consequence of private ownership is the calendar. Rome’s state and municipal museums take Monday off; this one is open on Monday and closed on Wednesday, which makes it the obvious fix for a Monday in Rome.
The other consequences run right through the building: no cloakroom, no lift, an audio guide recorded by the man who lives upstairs, and no published visitor number, because private museums do not appear in the ministry’s attendance tables. Who owns it, in full.
Buying entry to a private house
The plain reserved entry ticket, 4.7 from 1,910 reviews, collected at the gallery’s own desk. No state or city scheme covers this one, so the ticket is the whole of the arrangement.
Frequently asked questions
Is the Doria Pamphilj free on the first Sunday of the month?
No. That scheme covers state museums, with a separate city scheme for municipal ones, and this is a private family collection in neither network.
Does the Roma Pass cover the Galleria Doria Pamphilj?
It is not listed on the official Roma Pass page or on the Omnia card, and those passes are built around the state and municipal networks. Treat it as not covered and buy entry for this one separately.
Who actually owns the collection?
The Doria Pamphilj family, through the Doria Pamphilj Trust since 2013, with guardianship held by Prince Jonathan and his sister Gesine. More on the Trust.