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Leaf node

In computer science, a leaf node is a node of a tree data structure that has zero child nodes. Often, leaf nodes are the nodes farthest from the root node. Some trees only store data in leaf nodes.

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Charles V, Holy Roman Emperor

... Charles retired to the monastery of Yuste[?] and is thought to have had a nervous breakdown. He died in 1558. Preceded by:Maximilian I, Holy Roman ...