Several members of the Mortimer family were summoned to Parliament during the reign of Edward I, thereby making them hereditary barons in the Peerage of England.
The second Baron Mortimer of Wigmore was created Earl of March.
On 6 February 1299 Roger de Mortimer was summoned to parliament.
The title Baron Mortimer of Richard's Castle was created once in the Peerage of England.
On 6 February 1299 Hugh de Mortimer was summoned to parliament.