From Elizabethan times, elections in Derbyshire were dominated by the Cavendish family at Chatsworth, later Dukes of Devonshire. This influence was originally established by the formidable Bess of Hardwick, whose second husband was a Cavendish and who in 1572 manoeuvred to secure her son from that marriage a seat as MP for the county - a considerable honour for a young man from what was then a family of only minor importance. She had meanwhile married the 6th Earl of Shrewsbury, and her stepson, the future 7th Earl, was elected to the second seat for the county at the same time, despite being two-and-a-half years too young to take his seat. From this point onwards until the Reform Act, one of the two MPs was almost invariably a Cavendish or a Cavendish nominee, although the other seat was generally left to the other leading families of the county; the continuance of this dominance was all the more remarkable because Derbyshire did not have a rash of boroughs where the local gentry could find a seat when unable to secure election for Derbyshire - indeed, in the one borough that there was, Derby, the Dukes of Devonshire kept as tight hold on one of the two seats as they did in the county.