Trelawney family

Trelawney is the surname of a wizarding family. It is unknown if they are pure-blood, or have Muggle as well as magical heritage. There is known Seer heritage in the Trelawney family.

Known family members

 * Cassandra Trelawney — a famous Seer
 * Sybill Trelawney — Cassandra's great-great-granddaughter; Divination professor at Hogwarts School of Witchcraft and Wizardry
 * Mr. Trelawney — great-grandson of Cassandra and father of Sybill
 * Mrs. Trelawney — Muggle wife of Mr. Trelawney and mother of Sybill

Behind the scenes

 * Unless Sybill's mother, grandmother, great-grandmother, or Cassandra herself were single mothers or otherwise did not take their husband's name, it is likely that Cassandra Trelawney had a son (Sybill's great-grandfather), who had a son of his own (Sybill's grandfather), who had Sybill's father, in order to account for Sybill to have her great-great-grandmother's surname. Thus, it is also likely that Trelawney was Cassandra's married name.