‌Sophia Of and Herman I were married in a religious ceremony about 1182. They had a son and four daughters, named Ludwig IV, Jutta, Hedwig, Irmgard and Agnes.
Ludwig IV Of Thuringia Landgrave
Ludwig IV was born on October 28th, 1200. He died at the age of 26 on September 11th, 1227. He was buried in September 1227.