11. In the Mongol Empire, the darkhans were exempted from taxation, socage and requisitioning. 12. Socage grew at the expense of frankalmoign.13. Both these were incidents of socage tenure. 14. To hold for ever, as of the Castle of Dublin, in common socage . 15. However in 18th century they were likened to serfs, although with smaller socage duties. 16. The most important difference between the military and socage tenures was the mode of descent. 17. These cities had a duty of socage . 18. The abolition of socage facilitated industrial development. 19. The English statute " Quia Emptores " of freehold tenures were converted into socage . 20. Initially the peasants succeeded in getting the lords to waiver all duties, socage and interest.