I believe Guest is right and what you have is a mishearing. Some examples:

Child A:

Lady Ouncebell died on the yesterday
Lord Lovell on the tomorrow

Child B:

Fair Nancybelle died, as it might be, this day
Lord Lavel he died tomorrow

Cox 12 A text:

Lady Nancy died as it might be today
Lord Lovel he died tomorrow

Cox 12 B text:

Nancy Belle died this one glad day
Lord Leven died tomorrow

Cox 12 C text:

Lady Ouncebell died as it were today
Lord Lovell he died tomorrow

--Stewie.