A true staple for the medieval army on-the-go was a folding cooking tripod. Crafted from iron, the three legs are connected by a swivel rivet to a central hook - they can be opened and closed as needed. The foot prongs anchor the tripod into the ground. Includes an extension hanging chain with hook for iron cauldron for campfire cooking.
References:
Héroes Legendarios. Recreación histórica y literaria
https://www.heroeslegendarios.com/actividades/campamento-medieval/
La Casa del recreador
https://lacasadelrecreador.com/es/561-caldero-remachado.html