People.com Celebrity Parents Robert Wagner's daughter Katie expecting first child By Staff Author Published on August 10, 2006 09:47 AM Share Tweet Pin Email The New York Post’s Page Six gossip column reports that Katie Wagner, 42, the oldest of actor Robert Wagner‘s three daughters, is expecting a baby bloy next month with Scottish boyfriend Leif Lewis, 36. This will be the first grandchild for Robert. Source: Page Six Thanks to CBB reader Julie.