I can post a bit more but probably not the whole thing due to copyright concerns.
It's an entry in a manor court roll, for Heptonstall in West Yorkshire, dated 1727. Father transferring copyhold to his sons John and Jonathan, where I understand that Jonathan is the older son and he's providing for the younger son whilst not leaving the heir out completely.
Not convinced the available context will actually help distinguish here, but fingers crossed

"... houses with appurtenances now in occupation of the aforesaid John Robertshaw or his assigns to the use of John Robertshaw younger/youngest son of the aforesaid John for the rest of his natural life, and after to the use of William his* son and heirs and assigns..."
* I've taken "his" to mean that William is the son of John junior, rather than John senior. It fits better with the known family tree.