Kun Lago was a Prime Counselor to King Ars Veruna, a Human male, and also the father of Ian Lago. Reportedly, Ian, his son, became romantically involved with Padmé Amidala, who was the Princess of Theed at that time, near the close of the unscrupulous King's time in power.
He secretly observed Amidala and his son sharing a kiss during their short-lived romance, and he warned Ian that he would cut him off if he didn't break things off with the political rival. Despite his son's refusal, Amidala ultimately brought their relationship to a close.
Kun Lago was left without a job following King Veruna's resignation, and his son Ian, devastated by heartbreak, departed from Naboo.