Complex sentence: While the lodge is indisputably a testament to the faith of Tresham, it is also an example of the Elizabethan love of allegory, carved in the gables are the unexplained numbers "3509" and "3898".
Split into simpler sentences: While the lodge is indisputably a testament to the faith of Tresham, it is also an example of the Elizabethan love of allegory. Carved in the gables are the unexplained numbers "3509" and "3898".