Sheva berachot for a mourner

Hi,

Sheva berachot are viewed as a way to gladden the bride, in particular. Therefore, where a new husband is in mourning, the bride is able to forgive her right to sheva berachot.

(Rav Moshe Feinstein, Igrot Moshe Yoreh Deah 1:226)

Have a good day,
Mordechai