President Joe Biden said Thursday despite his Irish roots he’s “not stupid” before immediately confusing his wife’s father and grandfather.

“I just want you to know, I may be Irish, but I’m not stupid,” the president said while speaking at the Annual Friends of Ireland Luncheon. “I married Domenic Giacoppo’s daughter.”

First Lady Jill Biden was born to Donald Carl Jacobs and Bonny Jean Jacobs. Her grandfather, Domenico Giacoppo, is from the tiny village of Gesso in Sicily, according to Forbes. When Giacoppo was two, his family left Italy and headed to Ellis Island before settling in New Jersey, according to Forbes.