\documentclass[a4paper,11pt]{book}
\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
% Even Margins
\usepackage[a4paper,top=4.5cm,bottom=4cm,inner=3.5cm,outer=3.5cm]{geometry}
% Margins for printing
%\usepackage[a4paper,top=4.5cm,bottom=4cm,inner=4.25cm,outer=2.75cm]{geometry}
%Packages
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{amsfonts}
\usepackage{svg} % To read svg files (if not loaded, it doesn't compile for some unknown reason)
\usepackage{tocbibind} % To have entry "Contents" in Table of Contents, comment out if not wanted
% To print a pdf/a, de-comment the next line
%\usepackage[a-1b]{pdfx}
% Bibliography
\usepackage[style = alphabetic]{biblatex}
\usepackage{csquotes}
\addbibresource{res.bib}
% Library for table of contents
\usepackage{makeidx}
\makeindex
% Definition of Theorem-ambients
\numberwithin{equation}{chapter}
% Numeration in Chapter
% Ambients in italic
\theoremstyle{plain}
\newtheorem{theorem}{Theorem}[chapter] % If the numeration in Section is wanted (e.g, Thm 1.1.1), change "chapter" with "section"
\newtheorem*{theorem*}{Theorem}
\newtheorem{proposition}[theorem]{Proposition}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem*{corollary*}{Corollary}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{conjecture}[theorem]{Conjecture}
% Ambients not in italic
\theoremstyle{definition}
\newtheorem{definition}[theorem]{Definition}
\newtheorem{remark}[theorem]{Remark}
\newtheorem{observation}[theorem]{Observation}
\newtheorem{example}[theorem]{Example}
\newtheorem{notation}[theorem]{Notation}
\newtheorem{note}[theorem]{Note}
\newtheorem{axiom}[theorem]{Axiom}
% Subdivision in subfiles (to keep as last package loaded)
\usepackage{subfiles}
% Graphic paths for images
\graphicspath{{./images/}}
\begin{document}
\pagenumbering{roman}
% Cover to print on leather (to comment the next two lines if not needed)
\subfile{chapters/cover_bw.tex}
\thispagestyle{empty}
% Cover
\subfile{chapters/cover.tex}
\thispagestyle{empty}
% Page for dedication and/or quote
\chapter*{}
\thispagestyle{empty}
\begin{flushright}
"Quote"
\vspace{4mm}
\emph{Author}
\emph{Source}
\end{flushright}
\vspace{30mm}
% Dedication
\begin{flushright}
\emph{Line 1,}
\emph{Line 2}
\emph{}
\end{flushright}
\chapter*{Acknowledgements}
% To set the writings on the top of the pages
\markboth{ACKNOWLEDGEMENTS}{ACKNOWLEDGEMENTS}
\addcontentsline{toc}{chapter}{Acknowledgements}
\subfile{chapters/acknowledgements}
% Indice
\tableofcontents
\chapter*{Introduction}
% To set the writings on the top of the pages
\markboth{INTRODUCTION}{INTRODUCTION}
\addcontentsline{toc}{chapter}{Introduction}
\pagenumbering{arabic}
\subfile{chapters/introduction.tex}
% Chapter 1
\chapter{Name Chapter 1}
\subfile{chapters/chapter1.tex}
\label{chap:chap1}
%Bibliography
\nocite{*}
\printbibliography[
heading=bibintoc,
title={Bibliography}
]
% Declaration for Regensburg (comment next lines if not wanted)
\newpage
\,
\newpage
\thispagestyle{empty}
\noindent Ich habe die Arbeit selbständig verfasst, keine anderen als die angegebenen Quellen unf Hilfsmittel benutzt und bisher keiner anderen Prüfungsbehörde vorgelegt. Außerdem bestätige ich hiermit, dass die vorgelegten Druckexemplare und die vorgelegte elektronische Version der Arbeit identisch sind und dass ich von den in \textsection26 Abs. 6 vorgesehenen Rechtsfolgen Kenntnis habe.
\begin{flushright}
Unterschrift:
\end{flushright}
\end{document}