The 6-year-old cub, Xanda, was killed two years after the death of Cecil sparked international outcry.
Prosecutors accused Theo Bronkhorst of facilitating U.S. dentist Walter Palmer's hunt of the lion.
The lions were featured on a long-running BBC wildlife series.
Dr. Walter Palmer paid wildlife guides $55,000 to shoot the iconic lion in Zimbabwe earlier this year.
Walter Palmer says he will return to work on Tuesday after a fierce backlash.
Honest Ndlovu owns the game park into which Cecil was lured from the adjacent Hwange National Park and shot.
Some people feared the seven cubs might be killed by a new male lion trying to establish his dominance in the pride.
More than 3,000 lion parts were legally imported to EU countries from 2004 to 2013.
Wildlife conservation will not necessarily be enhanced by a total ban on hunting.
The untimely passing of the revered lion at the hands of an American dentist went largely unnoticed in Zimbabwe.
The death of a 13-year-old lion at the hands of an American hunter has sparked an international outcry.
The lion, known for his gentle demeanor, was reportedly shot with a bow and arrow in Zimbabwe.