Complex sentence: Not until the illegitimate birth of their first daughter, Xianglian, was their love made known to the other monks who remained very strict regarding the temple's edicts and so Xianglian was taken from her parents on her second birthday.
Split into simpler sentences: Not until the illegitimate birth of their first daughter, Xianglian, was their love made known to the other monks. The monks remained very strict regarding the temple's edicts and Xianglian was taken from her parents on her second birthday.