Supreme Court of Pennsylvania September 15, 1849 (Snowden v. Dunlavey)

The opinion of this court was delivered by

Gibson, C. J.

As every contract requires the assent of the parties to it, and as there can be no assent where there is no sufficient understanding, it follows that an insane man’s conveyance by deed, though not his conveyance by feoffment and livery of seisin, is absolutely void.