Complex sentence: Fulco is sometimes speculated to be the same as a certain "Folquinus", a late 12th century Bishop of Finland, only mentioned by name in a 16th century chronicle after equally legendary Rodulf and before quite historical Thomas.
Split into simpler sentences: Fulco is sometimes speculated to be the same as a certain "Folquinus", a late 12th century Bishop of Finland. Folquinus first appears in a 16th century chronicle after equally legendary Rodulf and before quite historical Thomas.