How did people speak in the Spanish Inquisition?

Please, no dumb answers like "in Spanish."

I am trying to write a book set in the Spanish Inquisition. The people in the book would be speaking English. Did they speak how Shakespeare wrote? How should I write it? I dont want it to be too difficult to understand. Would I be using words such as Wherefore and Thou?

It is set in the 1600s in The Spanish Inquisition. Any help would be appreciated! Thank you!

Comments are closed.