Nathalie Sancoeur

She created sentimonstorms before illness forced her to surrender the broken gem.

Nathalie Sancoeur serves as Gabriel Agreste's trusted assistant within the Agreste Group, managing his personal and professional affairs while acting as a caretaker to Adrien. In her secret capacity, she aligns with Hawk Moth against Ladybug and Cat Noir. The source explicitly notes that Nathalie falls ill from using the damaged Peacock Miraculous, yet Gabriel eventually repairs it. Once repaired, Gabriel takes the Peacock Miraculous from Nathalie and combines it with the Butterfly Miraculous to become Shadow Moth; Nathalie no longer uses the Peacock after this point. Her earlier role in creating sentimonsters, magical lifeforms with seemingly endless varieties of forms and abilities, aided Hawk Moth's schemes before she fell ill.

Quick Facts

Affiliation: Agreste Group, Hawk Moth Alliance

Lore & Background

Nathalie Sancoeur's involvement in the conflict centers on her use of the Peacock Miraculous to create sentimonsters. These magical lifeforms possess a seemingly endless variety of forms and abilities, serving as key assets for Hawk Moth. This physical toll contrasts with her unwavering loyalty to Gabriel Agreste. In response to her condition, Gabriel repairs the damaged artifact. With the gem restored, Gabriel takes the Peacock Miraculous from Nathalie and combines its power with the Butterfly Miraculous to become Shadow Moth; Nathalie no longer wields the Peacock after this point. This escalation allows Shadow Moth to simultaneously create akumas and sentimonsters, significantly increasing the threat level against Paris's heroes.

Did You Know?

Gabriel Agreste repairs the damaged Peacock Miraculous, but then takes it from Nathalie and uses it himself as Shadow Moth; Nathalie does not continue as Mayura.
At the end of season 5, Gabriel uses his wish to revive Nathalie at the cost of his own life.

Frequently Asked Questions

Who is Nathalie Sancoeur?

She serves as Gabriel Agreste's personal assistant and the primary caretaker for his son, Adrien. Beyond her public duties, she secretly operates as a major antagonist within Paris's superhero conflicts.

What are Nathalie Sancoeur's powers and role?

Using the Peacock Brooch, she transforms into Mayura to create Sentimonsters powered by human emotions. Her primary function is to support Hawk Moth while managing Gabriel's household affairs.

Is Nathalie Sancoeur good or evil?

She is portrayed as morally complex because she genuinely loves Adrien yet enables destructive schemes. This conflict makes her a tragic figure rather than a purely villainous character.