Center my dedication in my thesis

Question

Currently, I have

\documentclass[a4paper,     % Seitenformat
        12pt,                               % 
        bibliography=totoc,     % Literaturverzeichnis in das Inhaltsverzeichnis
        index=totoc,    % Index in das Inhaltsverzeichnis
        abstracton,     % mit Abstrakt
        headsepline,    % Trennlinie f�r die Kopfzeile
        %footnosepline, % Trennlinie f�r die Fusszeile
        ]{scrreprt}


\usepackage{calligra} % for dedication

\begin{document}    
\newpage

\vspace{4cm}
{\fontfamily{calligra}\selectfont \begin{huge}  To my parents, my brother and my sister. \end{huge}}


\newpage

\end{document}

I want to have this dedication in the middle of the page, but \vspace does not work, how can I do this?

Answer 1

Have you tried this? BTW I would write my sister first, then the brother.

\documentclass[a4paper,     % Seitenformat
        12pt,                               % 
        bibliography=totoc,     % Literaturverzeichnis in das Inhaltsverzeichnis
        index=totoc,    % Index in das Inhaltsverzeichnis
        abstracton,     % mit Abstrakt
        headsepline,    % Trennlinie f�r die Kopfzeile
        %footnosepline, % Trennlinie f�r die Fusszeile
        ]{scrreprt}


\usepackage{calligra} % for dedication

\begin{document}    
\title{Title}
\author{Joe Doe}
\dedication{To my parents, my sister and my brother.}

\maketitle

\end{document}

Answer 2

use star with \vspace:

\vspace*{4cm}