KATE & MEGHAN'S $10M SHOWDOWN!

Sisters-in-law’s peace talks END WITH ULTIMATUM

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PRINCE William’s furious wife, Kate, confronted sister-in-law Meghan over “vile public lies” and issued a seething ultimatum: Shut your mouth or you and Harry will lose your $10 million royal allowance, palace insiders tell GLOBE!

Sources say Kate’s chilling financial threat left Meghan reeling because she and Harry are facing a cash crunch after leaving the royal family and moving to California to pursue the duchess’ Hollywood dreams.

Initially, Kate called her sister-in-law to end the bitter feud that’s ripped William apart from his kid brother, royal insiders dish.

“But Meghan was so arrogant, Kate finally exploded,” a high-level courtier tells GLOBE. “She tore into Meghan over remarks branding Kate a boring phony and repeating rumors William had strayed with one of their neighbors.