Alderaanian monarchy The Alderaanian monarchy was the hereditary monarchy of the planet Alderaan . The last monarch was Queen Breha Organa , who perished along with her homeworld when the Galactic Empire destroyed Alderaan with the Death Star in 0 BBY . Although the Alderaanian diaspora managed to regroup , they had yet to reform their monarchy by 5 ABY . Role . The monarch of Alderaan ( otherwise referred to as " the King " if male , and " the Queen " if female ) both ruled and governed the planet , with the help of minister s and advisor s . In addition , he or she had charge of the royal books , balancing the many accounts and personally overseeing funding of all public works on Alderaan . In some cases , the monarch even assumed a ministerial portfolio . While the monarch worked for harmony on Alderaan , the planet ' s dealings with the galaxy at large were entrusted to his or her consort ( referred to as viceroy if male ) . History . The monarchy on Alderaan already existed a millennium before the rule of the Galactic Empire . In the distant past , belligerence did exist on Alderaan , and princes and princesses who made their claim to the crown sometimes had to fight their way to the throne room . Over time , however , a pacifist culture focused on creativity , love , and life developed on the planet , and the monarch was made the guarantor of that philosophy . Because the monarchs of Alderaan proved loyal compassionate to their people , regardless of their social background , they , in turn , enjoyed the loyalty and love of the Alderaanians . At some point before the end of the Clone Wars , Breha Organa ascended took the mantle of queen . She witnessed the fall of the democratic Galactic Republic and its replacement by the dictatorial Galactic Empire , and , along with her consort and viceroy Bail Organa , played a major part in the rise of the Alliance to Restore the Republic . She remained on the throne until her death in 0 BBY , which occured during the destruction of Alderaan by the Death Star , a mobile , sphere - shaped battle station the size of a Class IV moon . However , Crown Princess Leia Organa , who was on a secret mission to Tatooine , survived the destruction of her homeworld . Viscount Rabael Dir Glorio , 26th in line to the throne and last scion of House Glorio , also survived the cataclysm . Although Alderaan no longer existed , some surviving Alderaanians like Evaan Verlaine considered Princess Leia Organa to be their new queen . After the Battle of Endor , the surviving Alderaanians lived together aboard a seven - starship flotilla and planned to build themselves a new home from the remains of the second Death Star . However , they still had not chosen a monarch , and were ruled by Regent Administator Eglyn Valmor . By the time of the conflict between the First Order and the Resistance , Leia Organa was still considered the last prince ss of Alderaan . However , that status commanded little authority , since almost nobody took the concept of hereditary nobility seriously any longer , and Organa never wore any symbol of royalty unless tradition demanded it . Succession . A monarch of Alderaan was meant to be succeeded by his or her eldest child . Like all the other Elder Houses , the Alderaanian monarchy did not adjudicate succession through strict bloodline inheritance , meaning that adopted children could ascend to the throne . The heir apparent — whose succession appeared certain — was not made Crown Prince or Crown Princess until the age of sixteen , at which point he or she would have to undergo a series of rituals to prove their worth . The first step was the Day of Demand , on which the heir apparent would publicly claim his or her right to the crown in the throne room , before announcing three self - imposed challenges , that of the Body , that of the Mind , and that of the Heart . Upon fulfilling those challenges , he or she was invested with the Heir ' s Crown . Residences . The monarch ' s official residence was the Royal Palace of Alderaan , in the planetary capital of Aldera . It was the site of many official ceremonies , festivities , and banquets . At the time of Queen Breha and Viceroy Bail Organa , the royal family also possessed a ranch where they grew emerald grape s used to high quality emerald wine , and a penthouse suite on Coruscant called Cantham House . Style . As egalitarian as the Alderaanian monarchy was , people were normally expected to follow certain rules when conversing with royals . During her reign , Queen Breha was properly heralded and referred to as " Her Majesty Breha Organa " or " Her Majesty Queen Breha " , and addressed as " Your Majesty " . Her viceroy and consort Bail Organa was addressed simply as " Viceroy " . Their heiress Princess Leia was variously addressed as " Your Highness " , " Princess Leia ( Organa ) of Alderaan " , " Princess Leia " , or just " Princess " . She would introduce herself as " Leia Organa , princess of Alderaan " , " Princess Leia Organa of Alderaan " , " Leia Organa , princess of the ruling house of Alderaan , heir to the crown " , " Princess Leia of the royal House of Organa , future queen of Alderaan " . Regalia and emblems . Alderaan ' s monarchy tended to dress modestly , especially compared to the fastuous , bright garbs of the monarchs of Naboo . In fact , they favored relatively simple designs with muted color s . Queen Breha notably owned a blue - and - bronze slash - sleeved dress that mirrored her planet ' s ocean s and valleys . Her state wardrobe also included a dress of bronze silk , which she wore with her hair piled high atop her head in braids woven through with strings of beads , a green dress with wide skirts , and a deep red silk robe . In informal contexts , she wore simple velvet robes and let her hair down . A viceroy ' s apparel of office included a long coat . Simple white outfits also played a significant role in the monarchy . For example , both the monarch and his or her consort wore them during the investment ceremony of their heir . Also , Princess Leia was fond of simple white gowns that suited most occasions . During the Royal Award Ceremony , she wore one with long draping sleeves and a low scoop neckline . An emblem used by the royals was an upside - down triangle made of interlacing curves . It was notably featured on one of Viceroy Bail Organa ' s belt , and Princess Leia had a hair clasp shaped like it .