Dictionary of Medieval Names
from European Sources

Venture m. Italian ventura 'fortune'.

This is sometimes used as a pet form of Bonaventure, sometimes as a standalone name.

Italy
Latin
1198 Ventura (abl) ChStBo1 III; 1265x1339 Venture (gen) BBC-Berg 115; 1276 Venturus (nom) ibid. p. XLII; 1280 Venturus (nom) ibid. p. XLIII; 1282 Ventura (nom) ibid. p. XLVII; 1285 Venture (gen) Perugia1285 p. 160; 1292 Venture (gen) BBC-Berg p. XLIV; 1366 Venture (gen) Livi 59; 1527 Venturj (gen) Rome1527 p. 90
Italian
1513x1521 Ventura LeoX p. 16
Cite as: S.L. Uckelman. "Venture". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Venture.