I was in Rome for research for my Medieval thriller Murder in Rome, starring Bulgarian Orthodox priest, archivist and detective Petar Ivanov. The Bulgarian ambassador is killed in 1240 AD. 

The Bulgarian Emperor Plamen VI sends father Petar and his assistant deacon Alexander Nemev to catch the killer. Pope Gregory IX is supposed to assist the clergymen, but he is very busy in his power struggle with German Emperor Frederick II. Can the Bulgarians find the killer?

During my research  thought I could easily find a red or white or yellow suit in the Italian capital, but even in Via Nazionale and Vittorio Emanuele in the very city centre I saw only black and grey and blue suits. Maybe I was in the wrong streets or it was the wrong season?