How to use :

Tree can be zoomed with mouse scroll button or, for touch devices, by double touch or finger pinch at the lightblue-colored area. Alternatively, you can use the zoom buttons available at top left corner.
Tree can be draged around by mouse or finger touch.
The RESET button , naturally, will reset tree zooming and position.

Mouse hover/touch on the nodes to view display tooltip. For larger screens, you can choose between ‘Simple’ or ‘Complex’ highlight behaviour.

Use the ‘Search a Monarch’ to find a family member.

Succession Line : double-click/double tap onto Queen Elizabeth II picture to display succesion line to the British Throne.

Source and Notations

This monarch family tree visualization is based from the data found on a wiki page, so naturally similiar notations are being used :