HTML5 block-quote with author

UPDATE 2020

WHATWG says about the blockquote element

Attribution for the quotation, if any, must be placed outside the blockquote element.

WHATWG says about the cite element

The cite element represents the title of a work (e.g. a book, a paper, [...])

A person's name is not the title of a work [...] and the element must therefore not be used to mark up people's names.

So the following HTML it's fine:

<blockquote>
 <p>In victory, you deserve Champagne, in defeat, you need it.</p>
</blockquote>
<p>— Napoleon Bonaparte</p>

OLD POST 2018

HTML 5.3 Editor’s Draft, 9 March 2018

W3C says about the cite element:

The cite element represents a reference to a creative work. It must include the title of the work or the name of the author (person, people or organization) or an URL reference, or a reference in abbreviated form as per the conventions used for the addition of citation metadata.

So the following HTML it's fine:

<blockquote>
    Those who pass by us, do not go alone, and do not leave us alone; 
    they leave a bit of themselves, and take a little of us.
    <cite>Antoine de Saint-Exupéry</cite>
</blockquote>

I googled about this and it looks like <figure> and <figcaption> should do the job:

<figure>
  <blockquote cite="https://developer.mozilla.org/samples/html/figure.html">
    Quotes, parts of poems can also be a part of figure.
  </blockquote>
  <figcaption>MDN editors</figcaption>
</figure>

https://developer.mozilla.org/samples/html/figure.html

<figure>
  <blockquote cite="http://www.w3.org/html/wg/drafts/html/master/grouping-content.html#the-figure-element">
    The figure element represents some flow content, optionally with a caption,
    that is self-contained and is typically referenced as a single unit from the
    main flow of the document.
  </blockquote>
  <figcaption>asdf</figcaption>
</figure>

http://www.w3.org/html/wg/drafts/html/master/grouping-content.html#the-figure-element