We shul first feyne us cristendom to take –
Coold water shal nat greve us but a lite! –
And I shal swich a feeste and revel make
That, as I trowe, I shal the Sowdan quite.

– Geoffrey Chaucer

The Canterbury Tales, The Man of Law’s Tale. The Sultaness plans a number of deceptions as part of her play to pay back the the Sultan for converting to Christianity. First she and her supporters will present to become Christians, a little cold water in Baptism won’t upset them very much. Then she will arrange a great feast and celebration to honor her son the Sultan’s marriage, and she will take her revenge.