What happened to the ordinary shares of 25p in Guinness PLC please?

In 1997, the ordinary shares of 25p in Guinness PLC underwent a merger with Grand Metropolitan to form Diageo PLC. Following the merger, the shares were consolidated and reclassified, resulting in shareholders receiving new shares in Diageo instead of the original Guinness shares. This transition marked the end of Guinness PLC as an independent company and integrated its operations into the larger beverage conglomerate.