Representatives of Serb opposition groups meeting at the coastal resort of Vouliagmeni outside Athens yesterday called for the overthrow of Yugoslav President Slobodan Milosevic's regime. And the country's exiled crown prince urged the international community to ease sanctions against Belgrade, saying that they hurt the common people most. 

But the most dramatic result of the conference was the resignation of Alex Rondos, Foreign Minister George Papandreou's aide on humanitarian issues and Kosovo, following condemnation in the news media for referring to Prince Alexander Karadjordjevic as "Highness" - in accordance with protocol. 

Rondos tendered his resignation to Papandreou by telephone. It was not accepted, but Rondos is determined to stick to his resignation if the issue makes the foreign minister's work more difficult. Because of the flap, Papandreou canceled a speech to the Serb opposition members planned for today. He will meet with them at the ministry instead. Participants at the conference include Zoran Djindjic, head of the Democratic Party, Belgrade Mayor Vojislav Mihajlovic, representing main opposition party leader Vuk Draskovic, and Nenad Canak, head of the Union for Change. Patriarch Pavle, head of Serbia's Orthodox Church, sent a message of support. The participants were to be joined later by James Dobbins, special adviser to U.S. President Bill Clinton on Bosnia and Kosovo. Dobbins played down Alexander's call for an easing of sanctions. He told reporters that most of the Serbian opposition wanted sanctions eased, but that the United States believed they were necessary to hurt Milosevic.