The story of Grace O'Malley, Ireland's fearless 16th century 'Pirate Queen,'  is currently being developed for the big screen.

Variety reports that Irish writer and filmmaker Kirsten Sheridan has optioned Anne Chambers' book “Grace O’Malley — The Biography of Ireland’s Pirate Queen," and has been developing the project for several years alongside Chambers.

The story will focus on the true account of the meeting of Irish heroine Grace O’Malley (Granuaile) and Queen Elizabeth I.

The synopsis of the film states: "When her youngest son is taken prisoner, Grace sails right up the Thames to confront Queen Elizabeth directly. Over the course of just one week, these leaders of two warring nations question each other’s identity, pierce each other’s wounds, win each other’s respect, and come together as equals to define not only their nations, but their most intimate selves."

Producers Wild Atlantic Pictures added: “Unlike traditional period dramas, Sheridan’s vision for the film is raw and contemporary, exploring themes of sexuality, identity, and gender with a fresh and provocative lens. The project will not only depict Grace’s legendary exploits but will also dive into her complex personal journey as a leader, mother and survivor.”

Sheridan said: “This is a deeply personal passion project. Every Irish woman knows Grace O’Malley’s story. It is one of power, resilience, and rebellion. She defied gender norms, controlled her own destiny, and stood toe-to-toe with the most powerful woman in history. Grace was the ultimate punk Pagan ‘savage’ who came from a tribe of warriors, but also of filí, a powerful caste of poets and diviners.”

Sheridan's directing credits  include "Disco Pigs" and "August Rush." She  was nominated for an Academy Award in 2004 for the the semi-autobiographical film "In America,"  which she co-wrote with her father,  'My Left Foot' director Jim Sheridan, and sister Naomi Sheridan.

Her recent credits include writing for the series "Say Nothing" and executive producing the series "Lockerbie: A Search for Truth."

The upcoming feature film is supported by Screen Ireland, and will be produced by Wild Atlantic Pictures in collaboration with the Los Angeles-based Reclaim Entertainment Ventures.

Production is set to start in 2026.