Some have their wives, their sisters some begot,
But in the lives of emperors you shall not
Read of a lust the which may equal this:
This wolf begot himself, and finished
What he began alive when he was dead.
Son to himself, and father too, he is
A riding lust, for which schoolmen would miss
A proper name. The whelp of both these lay
In Abel's tent, and with soft Moaba,
His sister, being young, it used to sport and play.