TINSLEY TOWN: Tinsley Mortimer, who’s living between New York and Knightsbridge, is getting her first taste of London Fashion Week – and London for that matter.

She was at Graeme Black’s show on Sunday, and planned to attend Issa and Luella before shooting back to Manhattan for the New Yorkers for Children gala Tuesday night. “London has such a charm – and I’m learning quickly about the traffic. It takes so long to get everywhere,” said Mortimer, who’s becoming a regular at Cecconi’s, Annabel’s, Cipriani and Automat.

But she doesn't live by designers alone. She admitted that during a trip to Salzburg this summer with her beau, Prince Casimir zu Sayn-Wittgenstein-Sayn, she actually donned a dirndl. Duly impressed, she took the plunge and bought one of her own. “I chose the fabric and am having it tailored and fitted there. I was so excited to be wearing one, I e-mailed my family the pictures," she cooed.