The person who writes a will is known as the "testator" or "will maker." This individual outlines how their assets and property should be distributed after their death. It is crucial for the will to be legally valid to ensure that the testator's wishes are carried out as intended.
A person who writes a will is commonly referred to as the "testator."
A composer is a person who writes music.
A person who writes laws is called a legislator or a lawmaker.
The person who writes a check is called the payor. Or in the case of my brother, a sucker, when he writes another check for his girlfriend.
A Philosopher
An autobiographer is a person who writes the story of his or her own life.
A person who studies or writes history is called a historian.
A person who writes plays is known as a playwright. An example of a playwright is William Shakespeare.
A person who writes the libretto for an opera is simply referred to as the librettist.
testator
biography.
An author.