House Alde, was an ancient Great House on the planet Alderaan. Founded centuries before the founding of the Galactic Republic in 25,053 BBY, House Alde was the first royal house of Alderaan after Darrus Alde brought centuries of inter-house rivalries and conflict to an end at the ravine later known as King's Pass. He was crowned King of Alderaan by the newly-formed Alderaanian Parliament, and the house became known for its preoccupation with preserving the blood and lineage of Alderaan's first king. In the century before the Alderaan Civil War, Alde became a steadfast ally of House Organa, and the two houses remained staunchly loyal to the Republic in the fighting that followed Prince Gaul Panteer's death.