Druella Rosier

Druella Rosier was a pure-blood witch from the noble Rosier family and, by marriage to Cygnus Black, a member of the House of Black. While her personal actions are not chronicled in the original series, she holds a significant genealogical role as the mother of three pivotal witches: Bellatrix Lestrange, Andromeda Tonks, and Narcissa Malfoy. Her existence is confirmed through the Black Family Tree tapestry located at 12 Grimmauld Place.

Almost no details of Druella's life are present in the canonical novels. Her existence and immediate family connections are established solely by her name's appearance on the Black Family Tree tapestry, which Sirius Black shows to Harry Potter. The tapestry identifies her as the wife of Cygnus Black and the mother of his three daughters. According to the family tree, she was born into the Rosier family, one of the “Sacred Twenty-Eight” pure-blood families. Her marriage to Cygnus united two ancient and staunchly pure-blood supremacist houses. It is presumed she shared her family's and her husband's views on blood purity, though the extent of her involvement in the Dark Arts or support for Lord Voldemort is unknown. The tapestry does not provide her birth or death dates, leaving her ultimate fate unmentioned within the original novels.

Druella Rosier's physical appearance and personality are not described in the seven canonical novels.

As a witch from a respected pure-blood line, Druella presumably attended Hogwarts School of Witchcraft and Wizardry and was a capable witch. However, no specific magical talents, skills, or wand details are mentioned in the source material.

There is no mention of any specific items owned by Druella Rosier.

Druella's primary significance lies in her familial connections, which place her at the nexus of several important wizarding families.

• Husband: Cygnus Black. Their marriage reinforced the pure-blood solidarity between the Black and Rosier families.
• Daughters: Druella had three daughters whose lives followed dramatically different paths.
  1. Bellatrix Lestrange: Her eldest daughter, who married Rodolphus Lestrange and became one of Lord Voldemort's most fervent and sadistic Death Eaters.
  2. Andromeda Tonks: Her middle daughter, who was disowned by the family and burned off the tapestry for marrying the Muggle-born wizard Ted Tonks.
  3. Narcissa Malfoy: Her youngest daughter, who married the wealthy and influential Lucius Malfoy, securing the family's social standing.
• Grandchildren: She was the maternal grandmother of Nymphadora Tonks (through Andromeda) and Draco Malfoy (through Narcissa).
• Rosier Family: As a Rosier by birth, she was related to other members of this dark-aligned family, including the Death Eater Rosier who was an associate of Severus Snape during their Hogwarts years.

• Druella: The name is likely a diminutive or feminized form of Drusus, an ancient Roman cognomen. It may also be related to the “Druids” of Celtic tradition, figures associated with ancient magic, wisdom, and nature, which could hint at the family's long magical lineage.
• Rosier: This is a French surname meaning “rose bush.” The rose is a complex symbol, often representing beauty and love, but also secrecy (from the Latin phrase sub rosa, “under the rose”). In demonology, Rosier is also the name of a fallen angel or demon, which aligns with the family's association with the Dark Arts.

• A more detailed version of the Black Family Tree was created by J.K. Rowling for the film production of Harry Potter and the Order of the Phoenix. This document, later published on the Pottermore website, provides Druella's birth and death years as 1938-1992. (J.K. Rowling supplementary material).
• The Rosier family is listed among the “Sacred Twenty-Eight,” a list of supposedly “truly” pure-blood families published by Cantankerus Nott in the 1930s. (Pottermore).
• Another member of her family, Vinda Rosier, was a loyal follower of Gellert Grindelwald in the 1920s. ( The Crimes of Grindelwald).