Woman leaves her family (made in 1950 - 1970) - moves to foreign land

Looking for a movie (drama) from 1950s, 1960s - that might have come out around the time that Splendor in the Grass came out (1961) - about a woman that leaves her family and/or her life and goes to live alone (I think in a foreign land) and lives a lonely life (under a new name, I think) - it might be in black and white - just in case that rings a bell for anyone (I know it’s not many details)…

“Madame X” (1966)

IMDb link:

https://www.imdb.com/title/tt0060645/

Quote from the below Wikipedia plot summary:
”Estelle blackmails Holly into faking her death and disappearing to Europe under a false identity rather than facing murder charges and ruining her husband’s political career with the scandal. Estelle arranges for Holly to be secreted away at night from the family yacht, never to see her husband or son again.

Wikipedia plot summary:

You can watch the full movie on the internet here (with VPN disabled):