But in the centre and north-west the service landholding system had a great impact on social relations. By the end of the century service landholding dominated here, although in the centre a significant minority of land remained hereditary. Hereditary tenure was preferred because in theory service landholdings could not be transferred. But since many service tenure holders also held hereditary land, and since service holdings from the very beginning were treated
Muscovite grand princes used the system of service landholding to create stronger regional élites by resettlement. From the early sixteenth century they moved new settlers from the centre to areas previously conquered: Novgorod (1478), Viazma (1494), Toropets (1499), Pskov (1510), and Smolensk (1514). Later they continued to make grants of land in conditional tenure to populate newly conquered areas or to bolster frontier economies shattered by war. In the 1570s, for example, petty landholders from the Novgorod environs were moved to the western border (Velikie Luki, Toropets, Dorogobuzh, Smolensk, Viazma), while others were moved to recently captured territories in Livonia. When Russians were driven out of Livonia, they were resettled on the Novgorod frontier. These relocations severed original regional attachments but created new ones elsewhere, forging new regional élites and perhaps a more integrated centre.
Other policies also worked to create regional ‘corporations’ and a central élite. Laws from Ivan III’s time forbade landholders in almost all regions, for example, to sell land to non-locals;parallel injunctions kept land within princely clans. Up until the mid-century Muscovy mustered the bulk of the army by region or princely clans; by the end of the sixteenth century it had developed a more differentiated system of regional gentry ‘corporations’ arranged around towns (
The grand princes also forged the metropolitan élite by bolstering the principle of clan. Access to boyar rank was hereditary within clans. Traditionally the number of clans with such access was small: from the 1300s to 1462 it stayed around ten. But with the influx of new servitor families, rulers added new clans to integrate and stabilize the élite. From 1462 to 1533, the number of boyar clans rose from around fifteen to twenty-four, and after the turbulence of Ivan IV’s minority (1533–47) it nearly doubled to forty-six. Rulers used their own marriages to establish the political pecking order among the boyars: with his marriage in 1547 to a daughter of a leading faction (the Romanov clan), for example, Ivan IV resolved the struggles during the period of his minority. In 1555 he went a step further towards reconciliation in the élite by marrying off his distant cousin to a member of the boyar clan, the Bel’skie princes, who had been on the ‘losing’ side in the minority.
Rulers made clan the organizing principle of the sovereign’s court below the boyar level as well. In the system of precedence (