Tinsley Mortimer has a new reality show on The CW, leading to the question: Who is Tinsley Mortimer?

The newly single socialite — who still uses her ex-husband’s last name — is well known in New York social circles, but to the rest of the country she remains mostly an oddly-monikered mystery.

Tinsley, or “Tinz” as her friends call her, is best known for cultivating a Paris Hilton-style babydoll image, with her trademark blond curls and colorful, girly dresses. Her separation from Topper Mortimer last year made waves in New York high society.

Here’s what else you need to know about Tinsley, who stars in High Society on The CW Tuesdays at 9:30 p.m.

She fell in love with Topper, who comes from old New York money, in prep school — where he threw her into a snowbank. [New York Magazine]

She’s none too popular with the Mortimers post-divorce [Page Six]

She made a cameo as herself in an episode of Gossip Girl. [Gawker]

Mortimer has a line of handbags and clothing in Japan for Samantha Thavasa. Is it any surprise she’s huge in Japan? They LOVE Paris Hilton over there, too. [New York Observer]

She had an infamous feud with The City‘s Olivia Palermo [New York Magazine]

Tags: high society