"The Real Housewives of New Jersey" aren't the only ones who can throw down!

The New York cast gathered for their Season 5 reunion Monday night, and the shoulder-length gloves were off between Princess Carole Radziwill and Countess LuAnn De Lesseps.

While neither housewife uses her title -- Carole's late husband was Prince Anthony Radziwill and LuAnn's ex-husband was Count Alexandre De Lesseps -- they certainly have their own rules when it comes to social etiquette. Watch how Carole reacted to LuAnn requesting a dress from her friend, designer Naeem Khan:

Carole thought LuAnn's behavior was a horrible imposition. Naeem dresses the likes of First Lady Michelle Obama, Beyonce and Carrie Underwood.

Is LuAnn worthy of wearing a Naeem Khan design, especially for Life & Style Magazine?

Who acted classier?

Part 2 of the "Real Housewives of New York City" reunion airs next Monday, where LuAnn comes clean about what really went down between her and Tomas in St. Barths.

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