How can a noble be both lord and vassal

Nobles can be both lord and vassal. Nobility was generally granted on feudal rights on a land. If a noble (noble 1) that have, for example, feudal rights on a big land (land A) gives feudal rights on a smaller part of this land (land A1) to another noble (noble 2), the latter becomes his vassal.

Explanation:

well first we can compare on what the slave masters ate and what the slaves ate well the masters ate fancy great food like chicken rice mash potatose and stuff like that and slaves ate well food that your not suppost to eat like the weird parts of turkey and chicken and slaves master chilled beat and eat and slaves work get beat and get little of sleep there you go

a is the final : )