Here is a list of authors generated by posters on the General Europe section of the forum: https://community.ricksteves.com/travel-forum/general-europe/novels-set-in-europe
Eric Ambler
Jane Austen
Jane Austen
Fredrik Backman
Jean-Luc Bannalec
Robert Barnard
Charles Belfoure
Frans Bengtsson
Mark Billingham
Maeve Binchy
Cara Black
Rhys Bowen
Alan Bradley
Charlotte Bronte
Emily Bronte
Anne Bronte
Dan Brown
Andrea Camilleri
Miguel de Cervantes
GK Chesterton
Agatha Christie
Chris Cleave
Ann Cleeves
Vilmos Condor
Bernard Cornwell
Len Deighton
Michael Dibdin
Charles Dickens
Gary Disher
Anthony Doerr
Sir Arthur Conan Doyle
Dorothy Dunnett
George Eliot
Kjell Eriksson
Ian Fleming
Ken Follett
CS Forester
Tana French
Alan Furst
Diana Gabaldon
Neil Gaiman
Elizabeth George
Mario Giordano
Cyril Hare
Robert Harris
James Herriot
Mick Herron
Susan Howatch
CC Humprheys
Arnauld Indraeson
Jonas Jonasson
Philip Gwynne Jones
Ragnar Jonnason
Alexander Kent
Philip Kerr
Elizabeth Kostova
Camilla Lackberg
Stieg Larsson
John Le Carre
Donna Leon
Astrid Lindgren
M L Longworth
Stuart MacBride
Torquil MacLeod
Gilly MacMillan
Barry Maitland
Henning Mankell
Peter Mayle
David McCulloch
James Michener
Madeline Miller
Vilhelm Moberg
Magdalen Nabius
Barbara Nadel
Jo Nesbo Nesbo
Martin Nexo
Patrick O'Brien
Jussi Adler Olsen
Edith Pargeter
Chris Pavone
Ian Pears
Nicky Pellegrino
Anne Perry
Ellis Peters
Hannu Rajaniem
Ian Rankin
Ruth Rendell
Peter Robinson
Edward Rutherfurd
C J Sanson
Jean-Paul Sartre
Dorothy Sayers
Yrsa Sigurdardottir
Daniel Silva
Georges Simenon
Olen Stenhauer
Stephanie Storey
Frank Tallis
Patrick Taylor
James Thompson
Anthony Trollope
Gosta Unefaldt
Leon Urus
Maj Sjöwall Wahloo, Per
Martin Walker
HG Wells
Robert Wilson
PJ Wodehouse
Carlos Ruiz Zafron