His wife persevered in her attempts to save his life .
Wife 's efforts were fruitless , and Fenwick was beheaded in London on 28 January 1697 , with the same formalities as were usually observed at the execution of a peer .
His wife persevered in her attempts to save his life , but her efforts were fruitless , and Fenwick was beheaded in London on 28 January 1697 , with the same formalities as were usually observed at the execution of a peer .