Money rents often replaced service due to a lord, such as fish silver, malt silver, or barley silver. The lord's rights are being limited to the rights declared on the extents [records showing service due from each tenant] and the rolls of the manor. Sometimes land is granted to strangers because none of the kindred of the deceased will take it. Often a manor court limited a fee in land to certain issue instead of being inheritable by all heirs. Surveyors' poles marked boundaries declared by court in boundary disputes. This resulted in survey maps showing villages and cow pastures. The revival of trade and the appearance of a money economy was undermining the long-established relationship between the lord of the manor and his villeins. As a result, money payments were supplementing or replacing payments in service and produce as in Martham, where Thomas Knight held twelve acres in villeinage, paid 16d. for it and 14d. in special aids. "He shall do sixteen working days in August and for every day he shall have one repast - viz. Bread and fish. He shall hoe ten days without the lord's food - price of a day 1/2 d. He shall cart to Norwich six cartings or shall give 9d., and he shall have for every carting one leaf and one lagena - or gallon - of ale. Also for ditching 1d. He shall make malt 3 1/2 seams of barley or shall give 6d. Also he shall flail for twelve days or give 12d. He shall plough if he has his own plough, and for every ploughing he shall have three loaves and nine herrings ... For carting manure he shall give 2."