zen-8.x-7.0-alpha15/STARTERKIT/components/base/grouping/grouping-blockquote.twig

<blockquote class="{{modifier_class}}">
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere
  erat a ante.</p>
</blockquote>

<blockquote class="{{modifier_class}}">
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere
  erat a ante.</p>
  <footer>J. Smith in <cite title="Source Title, 2nd Edition">Source
  Title</cite></footer>
</blockquote>