Vyrenn Adelon was a Jedi Guardian who lived during the Old Republic era, more specifically during the latter years of the Great Galactic War and throughout the Cold War and following Galactic War. Completing his trials at the age of nineteen in 3658 BBY, he served in the final days of Great Galactic War, until its conclusion in 3653 BBY with the devastating Sacking of Coruscant and by extension the signing of the Treaty of Coruscant. Vyrenn was an ancestor of Myar Tesc, a Jedi Knight who fought during the Clone Wars and Galactic Civil War.