Princess Allura

Princess Allura of the planet Arus is the ruler of the Kingdom of Altair, as well as de facto ruler of the entire planet, and is also the object of Lotor's affections. Daughter of the late King Alfor, Allura inherited her father's authority on his death and is commander in chief and head of state for the planet Arus, and thus Commander Keith's surperior. However later she takes over for Sven as the pilot of the Blue Lion that forms Voltron's right leg, and defers to Keith during operational engagements. Allura wears a pink uniform in the original series, Though a bit naïve, especially with matters of romance, Allura is a strong-willed person, and is very capable of ruling her planet, though some like Coran and Nanny tend to doubt this ability. She is capable of invoking the dead, particularly her father, the late King Alfor.

Princess Allura is a Vital part of the Voltron force she is what usualy emotionaly drives them
to be determined and fight their hardest for the freadoms of everyone in the Galaxy!