What to do if line have "<" and ">" in text?

[Gh0sTG0]

Hi.
This is crashing with "not well-formed (invalid token): line 1, column 67".
When I checked what is in inner html that I'm trying to parse, I find, that problems are in this line (yes, I modified it a bit, so it becomes user-friendly):

<h1 class="the_class"><a href="/the_link.html" title="The title is <So important>">And some text here</a></h1>
-----------------------------------------------------------------^

And error links us to where "is" ends.
If I'm correct, fail is because there, on page, someone named title with "<" and ">", so it triggers on it as on new tag and wants me to fix things that there should be something like:

...="The title is" <So

Or something like that.

Is there some way to make it think that anyway there should not be any tags inside "the quotes", even if there are some "<" and ">" inside?

PS At the moment I can just remove title part, but... how soon I will find that "<" and ">" are in part that I need?