Complex sentence: From there he lived in the court of Rotrou III of Perche, who offered him a forest not from the town of Thiron where, by 1109, Bernard had established a primitive monastery dedicated to St. Anne.
Split into simpler sentences: From there he lived in the court of Rotrou III of Perche, who offered him a forest not from the town of Thiron. By 1109 Bernard had established a primitive monastery there dedicated to St. Anne.