Maria D. Hart, Age 89, of Mt. Lebanon, passed peacefully, on Wednesday, February 3, 2021. She was the beloved wife of the late William T. Hart (2015); daughter of the late John and Argyro (Moisakis) Patrinos; loving mother of Thomas Hart (Rachel Coloff), Dr. John (Laurie) Hart; sister of Christine Seitanakis, Stacia Arsenis, and the late Theodore (Sophia) Patrinos; cherished grandmother of Victoria and Mason Hart; and loving nieces and nephews. Maria was a lifelong member of Holy Cross Greek Orthodox Church, served on parish council and was passionately committed to fundraising and stewardship, chairing fashion galas and many dinner events. Throughout her life, Maria excelled as a visual artist and worked for many years as a fashion consultant and personal stylist. Her beautifully appointed home was featured in the Pittsburgh Press and her Greek dinner parties were legend, always garnering accolades. Maria loved painting and spent many of her younger years perfecting portraiture and still lifes. She was an ardent fan of the performing arts, supporting the ballet, Pittsburgh CLO and the world-renowned Pittsburgh Symphony. In the 1950s, Maria worked as an executive secretary at the American Standard Company. Visitation for Maria Hart will be held Saturday, February 6th, from 10:00 AM to 12:00 noon at Holy Cross Greek Orthodox Church 123 Gilkeson Road, Pittsburgh, PA 15228, with Funeral service immediately following the visitation. In lieu of flowers, the family respectfully requests donations in Maria's memory to Holy Cross Greek Orthodox Church. WILLIAM SLATER II FUNERAL SERVICE, Scott Twp, is entrusted with the Hart Family arrangements.