The Duke of Sussex was not improperly stripped of his publicly funded detail during visits to Britain, a London judge ruled.
Navalny died in mid-February in one of Russia’s harshest penal facilities.
President Joe Biden has said a potential agreement could go into effect as early as Monday.
King Charles III, who is being treated for an undisclosed form of cancer, also will not attend the service of the late King Constantine II of Greece.
The French president said "we will do everything needed so Russia cannot win the war."
Associates of the Russian opposition leader say talks had been underway to exchange him and two U.S. citizens for a Russian imprisoned in Germany.
The group says Israel is failing to provide urgently needed aid to desperate people in the Gaza Strip.
The move could open the door to U.S.-backed reforms in the Palestinian Authority.
Ukrainian President Volodymyr Zelenskyy says that 31,000 Ukrainian soldiers have been killed in action in the two years since Russia launched its full-scale invasion.
The countries struck 18 targets in response to the Iran-backed militia's attacks on commercial ships, which they say is to pressure Israel to end the war in Gaza.