Fan Zhongyan founded the Fan charitable estate at Suzhou, supporting kinsmen from the income of its fields, and his son Fan Chunren enlarged it from his stipends, and such estates spread across Jiangnan clans.

Northern Song to modern era
1050 · OriginIn 1050 (Huangyou 2 of the Northern Song), Fan Zhongyan endowed over a thousand mu of charitable land in Suzhou to found the Fan lineage estate, supporting kinsmen from its income.1064 · EvolutionAfter Fan Zhongyan's death his son Fan Chunren and later descendants repeatedly extended the Rules of the Charitable Estate and enlarged its land, institutionalising it for long-term operation.1750 · ImpactIn the Ming and Qing, charitable estates spread widely among Jiangnan lineages; the Fan estate grew to over 8,000 mu by the mid-Qing.
Sources (2)
  1. 范氏义庄 (The Paper)
  2. 范氏义庄延续九百年 (rujiazg)

A charitable estate was a holding of land shared by the clan together with the rules for running it. The land was called charitable land, its income was used to support clan members and also to fund a school, and the land was not divided among households, so that it could be kept from generation to generation.

In the second year of Huangyou of the Northern Song (1050), Fan Zhongyan gave more than a thousand mu of land at Suzhou and set up the Fan clan charitable estate, using the income of the clan land to support clan members.

After Fan Zhongyan's death, his son Fan Chunren used the stipends he received to enlarge the estate, and the estate carried on.

Lineage Trust Funds is the class in the chapter on Commerce on lineage charitable estates, which supported clan members from the income of clan land. In the Northern Song Fan Zhongyan gave land at Suzhou and set up the Fan clan charitable estate; the land belonged to the whole clan and could not be divided, and its income went to support and relieve clan members and to run a school.