Merging
It was suggested that Sigmund and Sigismund be merged but nobody has made comments on either.  I think peple are going to search by the name they see, so notes at the bottom advising of the variant should be enough.  If it gets to be a live issue again, feel free to r-tag it.  I'm just taking some initiative here because there are a ton of backlogged mergers and I'm trying to clean them up.