[googamooga]

This story is old as the world. "Qu'ils mangent de la brioche" - "Let them eat a cake", as great princess Marie Antoinette said upon learning that the peasants had no bread.

[yoha]

There is no support for that.

https://en.wikipedia.org/wiki/Let_them_eat_cake

[junke]

There is no proof it was actually her: https://en.wikipedia.org/wiki/Let_them_eat_cake

[Htsthbjig]

She never told that.

That was fictional phrase written in a novel by one famous writer, and attributed to Marie Antoinette, in order to discredit her because those who did benefit from that.

You should contrast your sources.