The A-list roster of 500 guests for the Chelsea Clinton wedding didn't include a spot for her fiancé's lone uncle.
A family feud blocked a disappointed Norton Mezvinsky from making the cut for the Saturday nuptials of his nephew, Marc, and the former First Daughter.
"I'm the senior male member of the family, and Marc's only uncle," Norton Mezvinsky told the Daily News Wednesday. "I am not surprised, but extremely hurt I wasn't invited."
Asked if he planned to send his nephew and Chelsea a wedding gift, the retired professor replied, "You can probably guess the answer to that."
Mezvinsky, a controversial figure because of his frequent criticisms of Israel, said politics had nothing to do with the decision to keep him away from the celebration set for a 50-acre estate in Rhinebeck, Dutchess County.
He confirmed reports from friends that a dispute involving the groom's father, disgraced former Iowa Rep. Edward Mezvinsky, was behind the snub.
Norton Mezvinsky supported his brother, leading to the rift with his 32-year-old nephew.
"Friends said it because it's true," Norton Mezvinsky said in his Manhattan apartment. "Two people who love each other should be able to disagree."
The uncle retired last year after four decades at Central Connecticut State University.