In the period 1583 to 1647 the following spellings were used to refer to Ruddington Bloods: Blood, Bloode, Bloud, Bloude, Bloudde, Blud, Blude, Bludd, and Bludde. Bear in mind these were how scribes or clerks spelt these people's names, and might have had little relation to how they themselves would have spelt them, assuming they could spell at all. Overall it's about evenly split between Blood-, Bloud-, and Blud- spellings. The pronunciation at the time probably rhymed with food.