How can override the title markup on a node page? I've managed to implement a custom page template but it still uses the default title markup.

I'm trying to find out how to replace the markup around the title so I can change it to something like:

&lt;h1 class="title" id="page-title"&gt;Node title&lt;/h1&gt;
&lt;h2&gt;Subtitle&lt;/h2&gt;


Can I override a template like region--header.tpl.php or something similar?

I'm using an omega based custom theme too btw.
As expected as soon as I posted this question I found the solution..

If you use the template region--main-heading.tpl.php you can override title markup.