Complex sentence: Tenant farmers on many noble estates were evicted, abruptly in some places, and their corvée was substituted by day labor and by farmhands of a new kind: older, experienced, and married.
Split into simpler sentences: Tenant farmers on many noble estates were evicted, abruptly in some places. Instead of their corvée, the manors employed day laborer and farmhands of a new kind: older, experienced, and married.