Fife, bounded to the north by the Firth of Tay and to the south by the Firth of Forth, is a natural peninsula whose political boundaries have changed little over the ages. The Pictish king list and De Situ Albanie documents of the Poppleton manuscript mention the division of the Pictish realm into seven sub-kingdoms or provinces, one being Fife, though this is now regarded as a medieval invention.[2]: 70–72 The earliest known reference to the common epithet The Kingdom of Fife dates from only 1678, in a proposition that the term derives from the quasi-regal privileges of the Earl of Fife.[2]: 132 The notion of a kingdom may derive from a misinterpretation of an extract from Wyntoun.[2]: 133 The name is recorded as Fib in A.D. 1150 and Fif in 1165.