django-polymorphic/polymorphic/templates/admin/polymorphic/delete_confirmation.html

{% extends "admin/delete_confirmation.html" %}
{% load i18n polymorphic_admin_tags %}

{% block breadcrumbs %}{% breadcrumb_scope base_opts %}
<div class="breadcrumbs">
     <a href="../../../../">{% trans "Home" %}</a> &rsaquo;
     <a href="../../../">{{ app_label|capfirst|escape }}</a> &rsaquo;
     <a href="../../">{{ opts.verbose_name_plural|capfirst }}</a> &rsaquo;
     <a href="../">{{ object|truncatewords:"18" }}</a> &rsaquo;
     {% trans 'Delete' %}
</div>
{% endbreadcrumb_scope %}{% endblock %}