What was the name of Edgar Allan Poe's younger sister?

Edgar Allan Poe’s younger sister was Rosalie Poe. She was the youngest of the three Poe children, following Edgar and his elder brother, Henry. Their parents, actors David Poe Jr. and Eliza Poe, died or disappeared while the children were very young.

After Eliza Poe died in 1811, the siblings were separated. Edgar was taken in by John and Frances Allan of Richmond, Virginia, while Rosalie was raised by the Mackenzie family in Richmond. Because Poe was separated from her during childhood, their relationship was not as continuously documented as his relationships with some other family members.

Rosalie later became associated with Richmond and was known for her interest in Poe’s literary legacy. A common mix-up is Virginia Poe, who was Poe’s cousin and later his wife—not his sister. Frances Poe was not his younger sister either; Frances Allan was the woman who helped raise Edgar after his mother’s death.