Final answer:
When the lord was away, management of his estate fell to 1. his most trusted vassal, who oversaw the work of agricultural laborers, including the serfs.
Step-by-step explanation:
In medieval Europe, when the lord was away at war or court, the management of his estate fell to 1. his most trusted vassal. The vassal was a free man who pledged loyalty to the lord and in return received protection and land-grants called fiefs.
The vassal had the authority to oversee the work of agricultural laborers, including the serfs who were tied to the land and provided labor and goods for the lord.