There is a small village in Western Bulgaria, not very far from the capital Sofia called Кондофрей roughly transliterated as Kondofrey. It is an otherwise completely unremarkable village except that its name is clearly of a foreign origin.
A local legend says that it was founded by a mysterious 'Count de Fray' or 'Count de Frey' who travelled with Baldwin IV during the 4th crusade. Count de Fray was supposedly killed in Constantinople and his staff decided to settle in Bulgaria. However there are no obvious traces of this count in any contemporary Flemish records.
The Bulgarian Wikipedia article for the village and its name mentions an alternative explanation for the village being named after the Byzantine naval commander Kontofre - and confirms that the first historical record of the villages dates back to the 13th century.
Anyone can shed more light on this?
Count was a relatively important title, is it possible that there are no traces left of a count-level title?
The author of this research paper concludes that the most likely candidate is indeed Manuel Kontofré, a Byzantine naval commander from the same era.
He also mentions Guigues IV, Comte de Forez (pronounced [fɔʁɛ] in French, so an almost perfect match) as another possibility. The author completely discounts him, but from I was able to find, he died on his way back and he is definitely a very strong candidate too.