Ulrich was the son of Ulrich I and Mechthild of Baden. He acceded power in 1265, at the age of 11 and, thus, was most likely under the tutelage of Count Hartmann II of Grüningen.
The young Ulrich took control in 1265 at the age of 11, with his father's passing. It is likely that he received guidance from Count Hartmann II of Grüningen during this time.