On June 17, the Manhattan District Attorneys' Association will fete him. Associate U.S. Supreme Court Justice Sonia Sotomayor is planning to be there. Sotomayor worked for Morgenthau when he was DA, as did Gov. Andrew Cuomo, John F. Kennedy Jr., Robert F. Kennedy Jr. and Cyrus Vance Jr. All told, he supervised 3.5 million prosecutions, including John Lennon's killer, Mark David Chapman, subway vigilante Bernie Goetz and preppie killer Robert Chambers.

Eight days later, he will be the guest of honor at the Police Athletic League Superstar Dinner, which is in recognition of his 56 years as its leader. U.S. Attorney for the Southern District Geoffrey Berman is having a party for him on July 30. There's a family party (he has seven children, six grandchildren and three great-grandchildren) on his birthday, July 31, and another on Martha's Vineyard, where his extended family gathers every August. Wachtell, where he is of counsel, has an event in the works, too.

As he approaches his 100th birthday, Morgenthau still works almost every day from Wachtell's offices on West 52nd St. or from his Upper East Side home. His mission now is to inspire young attorneys to understand the plight of immigrants and the less fortunate.