Looks like her maiden name was probably
Smith - there's a listing on Ancestry for a marriage between a Cook and a Spizenny
Smith in Breconshire. There was a Spizenny
Smith born in the first quarter of 1890 in the Weobley district of Herefordshire, so it would be worth getting her birth certificate if you want to know more about her. I'd say she was almost certainly from a Romani family, given the name.