Template:Familytree/doc

Tiles
Tiles consist of horizontal and vertical lines and various corners and crossings thereof. Tiles are specified using single-character symbols that try to more or less approximate the shape of the tile in appearance. A special case of a tile is the empty tile, specified by a single space character. A table of supported tiles is given below.

Boxes
Boxes are for describing the people in the family tree. Boxes are 3 tiles wide, so I prefer to use 5 letter names for them, although they're just variables and you can really use a name of any length.

Using it
Next, add names to the boxes like this:

And you can color the boxes:

More Info
Check this article on wikipedia for advanced usage and the explanation of all symbols.