15th century (Die Mahlzeit des König Artus, from Livre de Messire, Lancelot du Lac)
Bibliothèque nationale de France, Département des manuscrits, Français 12559. Early 15th C.
Dekorative Innenzelte 4 (foreign language website, Famvest) no specific info about artwork
BL Royal 15 E. I, f. 438, Chronique d'Ernoul et de Bernard le Trésorier,Siege of Jerusalem by Saladin, late 15th century
Amb. 317.2° Folio 142 recto
The Design of Medieval and Renaissance Pavilions. More straight sided, car-port like tents. Maybe I just wasn't paying attention.
» Mittelalterliche Zelte
Tent from the painting The Field of the Cloth of Gold, ca 1545. Greydragon makes the argument that there had to be an internal support structure based on the assumtion of naturalism. https://en.wikipedia.org/wiki/Field_of_the_Cloth_of_Gold
Romans de Alexander, Flemish illuminator Jehan de Grise and his workshop 1338-44