Yes, she is a well loved Goddess.
Any of the other Gods and Goddesses of Olympus or the Underworld. Namely Hades, Demeter, and Zeus.
Zues, Posiedon, and Persephone,
Among others; Zeus Poseidon Cerberus Persephone
His queen, Persephone, and those that dwell in the Underworld freely.
Persephone's allies included her mother Demeter, who was a powerful goddess of agriculture and fertility, as well as her husband Hades, the god of the underworld. Additionally, Persephone was often associated with other deities such as Hermes, who facilitated communications between the underworld and the upper world.
Persephone does not have any children.
Persephone is a goddess, so no - she does not.
No, neither Persephone nor her husband Hades have any children.
No, neither Persephone nor her husband Hades have any children.
As Hades was King of the Underworld, most gods and goddesses would do as he asked.
His brothers Zeus and Poseidon; his wife Persephone, as well as the deities of the Underworld such as the Dream gods and the Furies.
Many, for Persephone is daughter of Demeter and Zeus. Any child of her parents would be her sibling.