Carl-Fredrik Her?

airspray

The Page in Widget widget lets you display a page content inside a widget. This way you have more control how the content is displayed, and it’s much easier than hacking your own HTML.
The output is filtered through the_content-filter which means that paragraph tags are added, just as any other post or page.

Page in Widget

A tiny plugin that displays a page content in a widget.

Martin Tod

A quick way to show a set of the pages in a particular part of your site without having to show all the pages on the site.
Adds a widget to let you show a clickable list of pages linked to a particular ‘parent’ page on your site.

Sub Page Hierarchy Widget

An easy widget to let you show a clickable list of pages linked to a particular 'parent' page on your site

Page in Widget vs Sub Page Hierarchy Widget