Django template not displaying

I have a template for an about page which refuses to show. I'm probably doing something silly but I can't work out why and it's driving me insane!

part of views.py:

# About view
def about(request):
    return render(request, 'blog/about.html')

urls.py:

from django.conf.urls import patterns, include, url
from django.contrib import admin
from blog.views import post as blog_post
from blog.views import profile as blog_profile
admin.autodiscover()
urlpatterns = patterns('',

url(r'^admin/', include(admin.site.urls)),
url(r'^$', 'blog.views.index'),
url(r'^about/$', 'blog.views.about'),
url(r'^profiles/$', 'blog.views.profile_index'),
url(r'^profiles/(?P<profile_url>[\w\-]+)/$', blog_profile, name = 'blog_profile'),
url(r'^(?P<category>[\w\-]+)/$', 'blog.views.categoryIndex'),
url(r'^(?P<category>[\w\-]+)/(?P<slug>[\w\-]+)/$', blog_post, name = 'blog_post')
)

the about template (not including the base.html):

{% extends 'base.html' %}
{% block title %} About {% endblock %}
{% block content %}
<h1>About</h1>
{% endblock %}

Using Django 1.6.5

Tried to navigate to mysite.com/about/

Template hierachy:

templates
    base.html
    blog
        about.html
        ....