
Abstract This article reconsiders the Simultanist practice of Dublin-born artist Mary Swanzy (1882–1976), situating her work within the intellectual and aesthetic currents of early twentieth-century Paris. Through close analysis of La Poupée Japonaise and Young Woman with White Bonnet, it argues that Swanzy’s introspective and materially grounded engagement with colour and form constituted a deliberate assertion of artistic agency. Her use of ovoid forms and chromatic distortions reconfigured pictorial space, foregrounding perceptual complexity and spatial ambiguity. Positioned on the margins of both Irish nationalist narratives and the Parisian avant-garde, Swanzy’s Anglo-Irish identity shaped her strategic refusal of public spectacle and promotional discourse. Her studio-based practice complicates dominant models of avant-gardist innovation that equate visibility with legitimacy. Rather than opposing public-facing strategies, Swanzy’s work expands the scope of what Rachel Silveri terms a ‘feminine theory of the avant-garde’, recognising the diverse and valid ways that women artists negotiated visibility, agency, and aesthetic autonomy. Whether through wearable art, domestic experimentation, or introspective inquiry, these strategies collectively redefined artistic professionalism. Swanzy’s contribution lies in offering a parallel model of artistic independence that flourishes quietly yet insistently at and on the margins.