Add block from Luma parent into child theme

I’m using a custom child theme with Luma as the parent, I have a custom page layout xml file and I’d like to include a block that’s defined in the parent theme: <block class=”Magento\Theme\Block\Html\Title” name=”page.main.title” template=”Magento_Theme::html/title.phtml”/> Adding the above into a <container> in my custom.xml page layout file does nothing, seeing as I’m not looking…