Adonai Kryze, also known as Duke Duke, was the Mandalorian father to both Satine Kryze and Bo-Katan Kryze. As a member of House Kryze, he belonged to the royal family that governed the Mandalorians. In the decades preceding the Clone Wars, House Kryze of Kalevala held a prominent position among the Mandalorian clans; during this time, Adonai Kryze, the Duke of Kalevala, was the leader of all Mandalorians. When Bo-Katan was young, she underwent a Mandalorian initiation ritual within the Living Waters located in the Mines of Mandalore to take the Mandalorian Creed, receiving many gifts as Adonai watched with pride.
Around 41 BBY, rising tensions between Mandalorian clans ignited the Great Clan Wars. During these conflicts, Kryze distinguished himself as a warlord representing House Kryze, earning the respect of even his Death Watch enemies. Through the prolonged war, Kryze came to the conclusion that perpetual conflict would not foster prosperity on Mandalore. Consequently, he dispatched his daughter, Satine Kryze, to Coruscant, the capital of the Galactic Republic, to pursue diplomatic studies. He was killed in action on Mandalore during the war while defending the planet, and his pacifist daughter, Duchess Satine Kryze, succeeded him. Pre Vizsla, the leader of Death Watch, deemed Satine an unsuitable leader for the Mandalorians and conspired to form an alliance with Count Dooku.
Bo-Katan described him as a man of great stature.