Theodelinda was a Bavarian princess who became a queen of the Lombards through her marriages to two successive kings, Authari and Agilulf. Born around 570 in Regensburg, she exerted significant political influence over the Lombard realm for over thirty years. Following the death of her first husband, she chose Agilulf as her successor, later serving as a regent and co-regent for her son, Adaloald. She is remembered for her role in promoting Nicene Christianity throughout the Italian peninsula.