documentclass{scrbook}
usepackage[english,ngerman]{babel}
usepackage{blindtext}
usepackage{titlepage}
begin{document}
begin{fullsizetitle}
blindtext[13]
end{fullsizetitle}
end{document}

documentclass{scrbook}
usepackage[english,ngerman]{babel}
usepackage{blindtext}
usepackage{biblatex}
begin{document}
    begin{fullsizetitle}
        blindtext[13]
    end{fullsizetitle}
end{document}

documentclass{scrbook}
usepackage[english,ngerman]{babel}
usepackage{blindtext}
usepackage{titlepage}
usepackage{biblatex}
begin{document}
    begin{fullsizetitle}
        blindtext[13]
    end{fullsizetitle}
end{document}