“Multiple names” … continued. Chida – the more names you have, the more spiritual energy you have. Nicknames, e.g., Yossi instead of Yossef. Doubling up with Yiddish names, e.g., Zev Wolf. May a man/woman marry someone who has the same name as his/her mother/father? R’ Yehudah Hachassid’s will (tzava’ah). Chasam Sofer’s and R’ Moshe Feinstein’s ruling. By what name does one call one’s in-laws?