"Thurstan is said to have married a daughter of Adam de Kellet; eventually the lordship of Nether Kellet descended to his heirs by this wife. (fn. 14) He also acquired lands in Hale, and large grants in Makerfield. (fn. 15) Sir Robert de Holland, the son of Thurstan, who succeeded about 1276, married Elizabeth daughter and co-heir of Sir William de Samlesbury. (fn. 16)
Robert's son and namesake, Sir Robert de Holland, became one of the leading men in the county, being a favourite official of Thomas, Earl of Lancaster, from whom he secured an alteration in the tenure of Upholland, which does not seem to have been permanent. (fn. 17) He extended his possessions by a marriage with Maud, daughter and co-heir of Alan de la Zouch, (fn. 18)"