Shellbot

Posts by Category lets you display a list of posts pulled from a particular category or tag, and optionally 
group them by year, month or first letter of the post title.
Current features include:
<ul>
<li>Set a title to be displayed above list of posts</li>
<li>Shortcode allows post list to be inserted anywhere</li>
<li>Limit how many posts should be displayed</li>
<li>Group posts by year, month or first letter</li>
</ul>
Usage
To display the list of posts, add the following shortcode to your post or page.
Default settings:
<pre><code>[sb_category_posts]
</code></pre>
Custom settings:
<pre><code>[sb_category_posts show="10" cat="3" group_by="year"]
</code></pre>
For full list of parameters see <a href="http://codebyshellbot.com/wordpress-plugins/posts-by-category/" title="Posts by Category" rel="nofollow ugc">the plugin release page</a>

Posts by Category

Display a list of posts from a specific category or tag.

Sergio

Removes category base from your category permalinks (optional). By default is enabled. 
Removes parents categories from your category permalinks (optional). 
Removes tag base from your tag permalinks (optional).
The three options above are optional and generate their own rewrite rules.
Compatible with WPML Plugin and WordPress Multisite.
Read the <a href="https://wordpress.org/plugins/wp-no-base-permalink/faq/" rel="ugc">FAQ</a> before use.

WP No Base Permalink

It solves the main issue with category permalinks. Simple and effective.

Does the job!

Removes category base or parents categories or tag base from your permalinks. Compatible with WPML Plugin and WordPress Multisite.

Posts by Category vs WP No Base Permalink