brendaegeland

A common web design pattern is to have a primary navigation with the top level pages, and then a separate 
navigation element on each page that shows only those pages related to a common top-most page. This widget helps 
to build those secondary navigation elements.
If your page structure was like this:
<ul>
<li>Home</li>
<li>About</li>
<li>— Our History</li>
<li>— Our Staff</li>
<li>— — Employment Opportunities</li>
<li>Services</li>
<li>— Widget Development</li>
<li>— Gadget Deployment</li>
<li>Contact Us</li>
</ul>
and you added the widget with its default settings to a sidebar, it would create a list like this:
<ul>
<li>About</li>
<li>Our History</li>
<li>Our Staff</li>
<li>— Employment Opportunities</li>
</ul>
on any of the pages in the About subtree. Notice that the top-most ancestor, About, is included as the first element of the list.
<h4>Options</h4>
<ol>
<li>Title. The widget title. If left blank, it defaults to the title of the top ancestor page.</li>
<li>Show Title. Maybe you don’t want a title. Just turn it off here.</li>
<li>Top Page. You can select one of your pages to be the top page, or you can choose Default, which determines the top-most ancestor of the page being displayed.</li>
<li>Menu Class. Gets applied to the outermost <ul> element.</li>
<li>Before Links. HTML to be inserted before links in the list.</li>
<li>After Links. HTML to be inserted after links in the list.</li>
</ol>

Subpages in Context

Lists pages and subpages for a given page, or the top ancestor of the current page and all of the ancestor's descendants

WeblineIndia

This plugin creates a “Sub Pages” Widget and also a dynamically generated “sub_page” shortcode with different parameters passing in it.Please find option available with this plugin for both “Sub Pages” Widget and “sub_page” shortcode.
The plugin provides a shortcode generator page(Option Page) in which dynamic shortcode is generated simultaneously when you select your options from the options field. The selected values are passed as a shortcode parameters and everytime you visit the page you can generate the shortcode you want.
<h4>Key Features</h4>
Below are the options for displaying subpage if exists for that particular parent page.
<ul>
<li>Title</li>
<li>Displaying Sub Pages using a Sorting Order option.</li>
</ul>
Below are the options to add effect in the parent pages display when subpages are not available to display.
<ul>
<li>Displaying parent page as per Sorting Criteria </li>
<li>Page Exclusion, to not show the title of specific pages. </li>
<li>Depth Level, </li>
<li>Parent Sort Order, displaying parent pages title link using a Sorting Order option.</li>
</ul>
You can Copy the Dynamic Shortcode and paste where you want to display subpages or parent pages list.
Dynamic Shortcode: 
e.g: [sub_page title=’Pages’ sort_order=’DESC’ sort_by_values=’ID’ exclude_page_id=’13’ depth=’2′ sort_order_parent=’DESC’ ]
Note: This plugin will list the subpages for the current page being displayed, but if their is no childpage(subpage) for the current displaying page then it will display list of all the parent pages. If you don’t want to display some of the parent pages then also their is a feature in the plugin.
<h3>Translation available in following languages</h3>
<ol>
<li>English</li>
<li>French</li>
<li>Spanish</li>
<li>Chinese</li>
</ol>

List Sub Pages

This is a WordPress plugin for listing your subpages(childpages) for the current page which is being displayed.

Subpages in Context vs List Sub Pages