Irene of Hungary was a Byzantine empress consort born as Piroska in 1088 in Esztergom. As the daughter of King Ladislaus I, she moved to the Byzantine Empire following her marriage to John II Komnenos in 1104. After relocating to Constantinople, she adopted the name Irene and converted to the Eastern Orthodox faith. Throughout her life, she was known for her significant charitable activities and her role in supporting religious and social institutions within the empire.