A more thorough explanation:

Definition: A term used in history to describe the preference given to males in the laws of descent. This means that when someone dies and leaves behind both sons and daughters, the sons will be given priority over the daughters in inheriting property or titles.

Example: If John Stiles has two sons, Matthew and Gilbert, and two daughters, Margaret and Charlotte, and he dies, Matthew will be given priority over his sisters in inheriting his father's property or titles. If Matthew dies without any children, then Gilbert will be next in line.

This term is related to the concept of primogeniture, which is the practice of passing on titles or property to the firstborn son. The worthiest of blood refers to the idea that males are considered more important or valuable than females in terms of inheritance.