Earl of Derby in the context of "Edmund Crouchback"

Duke of Devonshire is a noble title in the Peerage of England, held by a senior branch of the Cavendish family, one of the most prominent aristocratic houses in Britain since the 16th century. It was created in 1694 for the 4th Earl of Devonshire. The family has historically amassed considerable wealth and wielded significant political influence, with several members holding senior positions in government. Alongside the Cecils (Marquesses of Salisbury) and the Stanleys (Earls of Derby), they have long been regarded as one of the most powerful families in the British nobility.

The Metropolitan Borough of Sefton is a metropolitan borough of Merseyside, England. It was formed on 1 April 1974, by the amalgamation of the county boroughs of Bootle and Southport, the municipal borough of Crosby, the urban districts of Formby and Litherland, and part of West Lancashire Rural District. It consists of a coastal strip of land on the Irish Sea which extends from Southport in the north to Bootle in the south, and an inland part to Maghull in the south-east, bounded by the city of Liverpool to the south, the Metropolitan Borough of Knowsley to the south-east, and West Lancashire to the east.

It is named after Sefton, near Maghull. When the borough was created, a name was sought that would not unduly identify the borough with any of its constituent parts, particularly the former county boroughs of Bootle and Southport. The area had strong links with both the Earl of Sefton and the Earl of Derby, resident of Knowsley Hall, and the adjacent borough was subsequently named Knowsley. A Sefton Rural District covering some of the villages in the district existed from 1894 to 1932.

Thomas, 2nd Earl of Lancaster (c. 1278 – 22 March 1322) was an English nobleman of the first House of Lancaster, a cadet branch of the royal Plantagenet dynasty. He held the titles of Earl of Lancaster, Leicester, and Derby from 1296 until his death in 1322, and also those of Earl of Lincoln and Salisbury jure uxoris from 1311 to 1322. As one of the most powerful barons in England, Thomas became a leading figure in the baronial opposition to his first cousin, King Edward II.