Sergio Cisneros "Kiskilla," the beloved keyboardist of the renowned Spanish folk metal band Mägo de Oz, passed away on March 6, 2025, at the age of 58 after years of battling Chronic Obstructive Pulmonary Disease (COPD). The news of his death was announced by the band through social media, where they expressed their deep sorrow and admiration for their long-time friend and collaborator.
"Kiskilla has finally ceased to suffer; he is now where there is no pain," the emotional statement read. The band went on to share their fond memories, highlighting the joy and creative spirit Kiskilla brought to their musical endeavors. "These days it hasn’t stopped raining in Madrid, as even the heavens weep for his loss. It has been an honor to share the Yellow Brick Road with you. Wait for us and start organizing one last concert for us when we arrive," they wrote.
Kiskilla’s career began in the late 1980s with the heavy metal band Cobra. His talent quickly shone through, earning him recognition with the influential Celtic and folk rock band Labanda. It was with Mägo de Oz, starting from the recording of their acclaimed album ‘Finisterra’ released in 2000, where Kiskilla would find enduring fame. His unique style, blending melodic elements with Celtic and symphonic textures, played a pivotal role during the band's peak years, contributing significantly to their signature sound.
During his time with Mägo de Oz, Kiskilla was involved in several notable recordings, including ‘Gaia’ (2003), ‘Belfast’ (2004), and the subsequent albums ‘Gaia II: La voz dormida’ (2005), ‘La Ciudad de los Árboles’ (2007), ‘Gaia III: Atlantia’ (2010), and the compilation album ‘Gaia: epílogo’ (2010), which featured two new songs. His artistry extended beyond the studio; he also participated in live albums such as ‘Fölktesgeist’, ‘A Costa da Rock’, ‘Madrid Las Ventas’, and ‘Barakaldo D.F.’
Kiskilla left Mägo de Oz in 2012, alongside bassist Peri, which marked the end of an era for the band. After his departure, he continued his musical career, collaborating with José Andrëa's band Uróboros, and later with the band Amigoz, where he reunited with former Mägo members including flutist Fernando Ponce de León, who had sadly also passed away recently. Throughout his career, Kiskilla was known not only for his musical talent but also for the respectful and collaborative spirit he radiated.
His long struggle with COPD forced him to withdraw from the stage around 2021, leaving fans to mourn his absence not just from concerts but from the vibrant rock scene. Even with his health declining, Kiskilla continued to contribute to music, showcasing his resilience and dedication. Reports indicated he had been dependent on supplemental oxygen for some time prior to his passing at the Hospital de la Paz in Madrid.
The news of Kiskilla's death has sent waves of grief through the music community and among fans of Mägo de Oz. Social media platforms are flooded with tributes, and fellow musicians have shared their condolences. Many fans expressed their disbelief and sorrow, reflecting on the lasting impact Kiskilla had on the music scene and the countless musicians he inspired. "An eternal legacy, the most peaceful of them all, always with a smile and collaborating with everyone without issues. Thank you for everything, eternal idol," commented one fan. Others echoed their sentiments, saying they cannot believe he is gone, remarking, “Fly high, great among the greats,” and “Rest peacefully, maestro.”
At his core, Kiskilla was more than just a musician; he was considered one of the key figures of Spain's national rock identity, recognized for his grounding presence and remarkable skill. He transcended musical genres, leaving behind a legacy cherished by fans of folk metal and rock alike. Musicians and fans alike praise Kiskilla for his contributions, stating he had helped make the folk metal of Mägo de Oz the soundtrack for those seeking new sonic horizons.
Tributes continue to pour in from across the music community, as news of Kiskilla's untimely death is still reverberated through the hearts of many. His artistic spirit is one many will celebrate, with hopes of honoring his memory through music. Surely, the music world has lost one of its finest.
May he rest in peace.