But putting aside the constitutional aspects of the Wars of the Roses, it is necessary to point out that they had another aspect. From one point of view they were little more than a great faction fight between two alliances of over-powerful barons. Though the Lancastrians made much play with the watchword of loyalty to the crown, and though the Yorkists never forgot to speak of the need for strong and wise governance, and the welfare of the realm, yet personal and family enmities had in many cases more effect in determining their action than a zeal for King Henry's rights or for the prosperity of England. It is true that some classes were undoubtedly influenced in their choice of sides mainly by the general causes spoken of above; the citizens of London and the other great towns (for example) inclined to the Yorkist faction simply because they saw that under the Lancastrian rule the foreign trade of England was being ruined, and insufficient security was given for life and property. But the leading men among the baronage were undoubtedly swayed by ambition and resentment, by family ties and family feuds, far more than by enlightened statesmanship or zeal for the king or the commonweal. It would be going too far to seek the origin of the Yorkist party--as some have done--in the old enmity of the houses of March, Norfolk and Salisbury against Henry IV. But it is not so fantastic to ascribe its birth to the personal hatred that existed between Richard of York and Edmund of Somerset, to the old family grudge (going back to 1405) between the Percies and the Nevilles, to the marriage alliance that bound the houses of York and Neville together, and to other less well-remembered quarrels or blood-ties among the lesser baronage. As an example of how such motives worked, it may suffice to quote the case of those old enemies, the Bonvilles and Courtenays, in the west country. While Lord Bonville supported the queen, the house of Courtenay were staunch Yorkists, and the earl of Devon joined in the armed demonstration of Duke Richard in 1452. But when the earl changed his politics and fought on the Lancastrian side at St Albans in 1455, the baron at once became a strenuous adherent of the duke, adhered firmly to the white rose and died by the axe for its cause. The baronial party. The Nevilles.