Saints Theodore and Paul of Rostov founded a monastery at the River Ust, not far from Rostov, in honor of the holy Martyrs Boris and Gleb (May 2). St Theodore (November 28) first came to the site of the future monastery from the Novgorod region. St Paul came three years later for ascetic struggles.
St Sergius of Radonezh (September 25 and July 5) came to Rostov, his native region, in 1363. Learning of this, Sts Theodore and Paul came to the great ascetic for spiritual counsel. St Sergius visited their wilderness monastery and blessed them to build a church there named for the holy Passion-Bearers Boris and Gleb. Already during the construction of this first church, monks began gathering around the ascetics. The igumen, St Theodore, joyfully accepted all who came. Soon a second temple was built in honor of the Annunciation of the Theotokos.
Setting the Borisoglebsk monastery in order, St Theodore entrusted its direction to St Paul. Then he himself took several disciples and withdrew into the Vologda forest. Here at White Lake, near to the confluence of the River Kouzha into it, he founded a monastery and lived an ascetic life for several years. He built a church dedicated to St Nicholas, set the monastery in order, and appointed an igumen for it.
Having received a revelation about his impending death, he returned to the Boris and Gleb monastery, where he died on October 22, 1409. St Paul directed the two monasteries for a certain while, then he also died at the Monastery of Sts Boris and Gleb.