Here are the King and Queen: Senators Mon Mothma and Bail Organa.
Mon Mothma was a human female politician and revolutionary leader who served in the Galactic Senate and Imperial Senate as the representative of Chandrila, the leader of the Alliance to Restore the Republic, and the first chancellor of the New Republic. She came to political prominence during the Separatist Crisis and the Clone Wars as a member of Supreme Chancellor Palpatine's Loyalist Committee. Along with such allies as Bail Organa of Alderaan and Padmé Amidala of Naboo, Mothma became an outspoken proponent of pursuing peace between the Galactic Republic and the Confederacy of Independent Systems. She also spoke out against the increase in executive wartime power given to Chancellor Palpatine. At the end of the war, as Palpatine continued to amass power and ultimately transformed the Republic into the Galactic Empire, Mothma worked with Senator Organa to begin planting the seeds of rebellion against the Imperial regime. Though she remained in the Imperial Senate as a proponent of democracy, these seeds ultimately led to the formation of the Rebel Alliance to militarily combat the might of the Empire.
Bail Prestor Organa (formally styled as His Serene Highness, Prince Bail Organa, First Chairman and Viceroy of Alderaan) was a Human male who served as the First Chairman and Viceroy of Alderaan, and served in the Galactic Senate as the Senator of the Alderaan sector from 32 BBY to 19 BBY. Subsequently, he was Senator of the Alderaan sector of the Imperial Senate from 19 BBY to 1 BBY. He was Princess Leia Organa's adoptive father and a friend of Jedi Masters Obi-Wan Kenobi, Yoda and Rahm Kota. He was married to Queen Breha Organa of Alderaan and was, as Prince Consort, head of the royal house and ruler of Alderaan. One of the main founders of the Rebel Alliance, he was killed when the Death Star obliterated Alderaan. In the Alliance and its successor states, the New Republic and Galactic Federation of Free Alliances, he was respected as a martyr who died for his cause.