Subinfeuded means to grant land to someone who then grants it to someone else.
Subinfeuding is an old word for giving land to someone else to use.
Examples:
The king subinfeuded the land to the lord.
He subinfeuded the estate to his brother.
The land was subinfeuded to the peasants.
She subinfeuded the property to her cousin.
The queen subinfeuded the entire kingdom to her loyal subjects.
They subinfeuded the whole town to the animals, and the animals made it their own.