The Panteer crown was the traditional symbolic form of headgear that was worn by the monarch of Alderaan, before the assassination of the last Panteer queen, Silara, and break of the Cold War.
When it was lost, Sir Deris Panteer, a dying Queensguard, asked visiting servants of the Sith Empire to recover the crown from the wreckage of Queen Silara's transport in the Glarus Valley. Locating it near near an escape pod not far from the crash site, the Imperial servants brought it to Captain Lieber at the Panteer mountain hideaway in the valley.