Complex sentence: Liechtenauer seems to have been active during the mid-to-late 14th century; it has been speculated that he may still have been alive at the time of the compilation ms.3227a, but this is based on the absence of a formula marking him as deceased.
Split into simpler sentences: Liechtenauer seems to have been active during the mid-to-late 14th century. It has been speculated that he may still have been alive at the time of the compilation ms.3227a, but this is based merely on the absence of a formula marking him as deceased.