How to add a signature (author name, place, date) to a preface?

Question

I want to have a book preface signed with author (the prefaces’s, not the book’s), date and place name. I am using Koma-script, but could use a different package as it is quite a simple book. Does any package have a standard way of doing that?

Answer 1

Here what I ended up wiþ:

\medskip
\begin {flushright}
  Leandro Guimarães Faria Corcete \textsc {Dutra}, Brasília, fim da seca
  de 2017.
\end {flushright}

Answer 2

The source of the German KOMA-Script guide uses

 \bigskip\noindent
 Markus Kohm, Neckarhausen bei eisigen Temperaturen im Januar 2017

at the end of the preface.

If you want the date of the LaTeX run, you can use

\bigskip\noindent
My Name, \today, somewhere

If you want several lines

\medskip
\begin{flushleft}
  My Name\par
  \today\par
  Somewhere
\end{flushleft}

or

\medskip
\begin{flushleft}
  My Name\\
  \today\\
  Somewhere
\end{flushleft}