Probably not the question you were expecting, even though I’m posting this on Trinity Sunday.
The answer is yes, kind of.
Buenos Aires was shortened from Ciudad de la Santísima Trinidad y Puerto de Nuestra Señora la Virgen María de los Buenos Aires.
This means ‘City of the Holy Trinity and Port of Our Lady the Virgin Mary of Good Airs [or Good Winds]’.
It must have been a challenge to fit onto street signs.
Although the Virgin Mary no longer features in the name of the capital, the capital has not forgotten her. I expected her in the cathedral, but Our Lady is everywhere, and sponsors one or two interesting causes.