Royal Mail Group plc (Welsh: Post Brenhinol; Scottish Gaelic: a' Phuist Rìoghail) is a postal service and courier company in the United Kingdom, originally established in 1516. The company's subsidiary, Royal Mail Group Limited, operates the brands Royal Mail (letters) and Parcelforce Worldwide (parcels). General Logistics Systems, an international logistics company, is a wholly owned subsidiary of Royal Mail Group.