Wills date from at least Roman times.
In the Middle Ages even by writing a will you could not control all of what happened to your property. (After taxes) the law provided that a certain amount of your property had to go to your family. Only about one third of your property could you do what you liked with in your will.
By the mid-to-late 1600s the law had changed everywhere in England so that after taxes the property could be divided up however the person making the will decided.