I posted a Leaflet the other day on a nineteenth century man named Hyacinth, noting that it is not a name you see often these days (we are close to seeing hyacinth flowers, however). I did come across the name recently in fiction. Not long after clearing Tiki’s DLC paralogue in Fire Emblem Engage for the Nintendo Switch (see my essay on the endeavor), I meat King Hyacinth of Elusia, an antagonist within the game.  King Hyacinth is more than a little bit creepy and thus does not do the pretty flowers justice.  While his name is not a common male surname name these days (at least in the United States, I cannot speak for whether it is in Japan), it does fit in with his family in Engage.  His daughters, Ivy and Hortensia, also have plant/flower-based names.