Robert Piggott (or Pigot) was born in 1653/4 the second son of George Piggott of Preston. George was married to Elizabeth and they had another son, George, and two daughters, Mary and Lucie.  George Piggott had moved to Preston from Cheshire some time between 1622 and 1642, for he was entered on the guild rolls in that period ; by 1663 he was occupying one of the largest houses in the town.  George Piggott senior died in 1684 . Robert Piggott’s name is attached to a three-storey house on the south side of Church Street on the 1685 plan of the town and a house in Fishergate is shown as belonging to or occupied by George Piggott esq. His sister Mary was married to Richard Assheton of Cuerdale and Downham.
Clemesha describes Piggott thus, ‘Robert Piggott was a person of some importance. In 1684-85 he was the mayor’s bailiff, a position which conferred a sort of right of entry to the select ranks of the aldermen and councillors. He acted as under-sheriff at one period, and one of the Asshetons of Cuerdale, married his sister.’  An entry in Thomas Bellingham’s diary for 26 November 1688 suggests he was a captain of militia with his own company, and an entry in Lawrence Rawstorne’s diary for 9 October 1688 describes him as a lawyer.
Robert’s elder brother George appears to have moved to Manchester.  He could have been the George Piggott who was a churchwarden in Salford in 1686.  There are no mentions of a George Piggott after the death of George senior in either the court leet or Lancashire Archives records. 
Robert must have been the Piggott William Patten was referring to in a letter to Roger Kenyon dated 13 November 1684: ‘When Madam Lindley was last at Preston, Mr. Pigot had the happiness to see her, and was mightily struck in love with her; and he and I went to Manchester to waite upon her, in the way of courtshipp, this week. He caressed the younge lady, and I complemented the mother …’