The earliest records of Linslade are of an Anglo-Saxon Manor, at the site of present-day Old Linslade, in 975 belonging to "Azelina", Ralph Tailbois' wife. The original Anglo-Saxon settlement of Linslade—prominent during the 13th century—was not located at the modern site, but was further north. It later became the hamlet of "Old Linslade, superseding" the original location of the 1840s. This transpired after massive growth associated with the construction of the Grand Union Canal and—particularly—the London and Birmingham Railway (now known as the West Coast Main Line). Linslade underwent a second major period of expansion, again associated with the railways, during the 1970s.