To clarify:
- Toyohime is Toyotamahime.
- Toyotamahime's husband is Hoori.
- Hoori's mother is Konohanasakuyahime.
- Konohanasakuyahime's older sister is Iwanagahime.
- Iwanagahime is Ariya.
For additional information, please consult this chart.
And this Jojo reference is Wekapipo's brother-in-law.
