A king was the male leader of a monarchy. Typically, this position was obtained through inheritance by birthright, and the king's rule lasted for their entire life. A female holding the same position was known as a queen. Several planets, including Mon Cala, Onderon, and Toydaria, were governed by kings. However, in some instances, such as on Naboo, the king or queen was elected by the people and could only remain in power for a limited term.
Jafan was the monarch of Naboo during the planet's era known as the Great Time of Peace. Conversely, Ars Veruna governed before Queen Padmé Amidala took the throne.
Prior to being exile from their home planet, the ancestors of the First Wavers stood by a deposed king. Because of this, they chose to accept banishment rather than go against their pledge.
During the Clone Wars, Katuunko was the king of Toydaria, but he was ultimately killed by Savage Opress, who was a Sith apprentice.
Chai ruled as the king of the planet Vallt. He passed away during the Clone Wars, and Marshal Phara, an ally of the Separatist, took his place.
Yos Kolina was the eighty-second king to rule the aquatic planet of Mon Cala. Following his assassination by Riff Tamson, a Separatist Commander, and the subsequent battle, his son Prince Lee-Char inherited the throne.
During the Clone Wars, Manchucho was the king of Aleen. He and his people requested aid from the Galactic Republic when groundquakes devastated their world.
Ramsis Dendup, the king of Onderon, decided his planet would remain neutral during the Clone Wars, refusing to side with either the Galactic Republic or the Confederacy of Independent Systems. Subsequently, Sanjay Rash, a puppet ruler installed by the Separatists, replaced him on the throne. Onderon was eventually liberated from the Confederacy's control by rebels, aided by Ahsoka Tano, a Jedi Padawan.
During the Galactic Civil War, a king governed the planet Shu-Torun until he was slain by BT-1 and 0-0-0, Darth Vader's assassin droids. The Sith Lord then placed the late king's third child, Princess Trios, on the throne.
Grakchawwaa, a Wookiee, served as a king on Kashyyyk, a planet located in the Mid Rim.
Around the time of the Iron Blockade of the Anoat sector, King Ozz was the ruler of Ugnorgrad, the floating colony of Ugnaught orbiting the gas giant Bespin.
During the conflict between the First Order and the Resistance, Han Solo, a smuggler, was hired by King Prana to obtain rathtars for his personal menagerie.