Goddesses don't die. They're immortal, thus the reason why they're called 'goddesses.'
However, if you mean a mortal woman who died on her wedding day, that would be Eurydice.
It was not known in Greek myth.
Gaia is a Greek goddess, originating in the Mediterranean Sea region. In Greek myth, she was born of Aither (Air) and Hemera (Day).
It was not known in Greek myth.
Yes, when she and the other Greek gods and goddesses are studied.
Eurydice, I think..well she was bitten by a snake on her wedding day and died in Orpheus's arms.
It was the day named for Ares/Mars.
She kept Olympus live and well
Athena did not die on any day. In Greek mythology Athena was a immortal goddess.
Rory Kennedy's wedding.
για τον γάμο σας ημέρα
because he does and is the godness of love in most greek myths kudos
Eos is the first to rise for the day.