She was wife of the king between 1370 BC and 1330 BC, although she never ruled Egypt in her own right, not that we know of anywhere.
We have no record of Nefertiti's brother, or if she even had one. Some scholars think that she may have ruled as co-ruler with her husband, Akhenaton, and that's really about all history, factually, knows about her.
Nefertiti was not cruel
No, you have your queens mixed. It was Cleopatra who was exiled by her brother.
Her husband Akhenaton changed the religion of Egypt from worshiping a pantheon of gods to worshipping Aton, an impersonal god represented by the sun disk. Under Akhenaton Egypt became monotheistic.
Queen Nefertiti ruled during the 18th dynasty trying to prove that Egypt was an all mighty nation. She ruled EQUALLY with her husband and helped invent a way to worship Ra.
Egypt
She lived in Egypt.
egypt
12 years
she lived in the Giza
Ciro Egypt
She ruled in 1351 BCE