What names have we missed?

This name, created by Italo Calvino, has been spotted as a name in England.

Macsen may sound like a modern invention, cousin to Jackson and Maxon, but it's a longtime Welsh variation of Maximus with evocative roots in legend. Macsen Wledig is another name for the Roman emperor Magnus Maximus, was played an important role in Welsh history and was further immortalized in a poem celebrating his dream about his lover Elen. Macsen also appears in Arthurian legend.