So I decided to start another CK game today, imagine my surprise however, when Robert 'Guiscard' de Hauteville Duke of Apulia had TWO wives, and they were both very much alive, and they both had children from him. Is this a glitch or is it just a bit of historical accuracy? Another question, is this possible to achieve in other situations, because it would help my kingdom a lot if I could attain two wives at times.