(1)  Robert le Grosvenor is the earliest member of the family of whom contemporary mention is found. He received a grant of Budwroth in Cheshire from a later Earl of Chester, Hugh Kevelioc (1153-1181). His wife Alice, who married second William de Stretton. They were parents of Randall and Robert.
 
 

        (2) Randall le Grosvenor, died before 1232, in the lifetime of his mother. Father of:

1. Robert, died by 1241; married Margey, and left issue.
2. Richard, mentioned below

        (3) Richard le Grosvenor, in 1234 received a grant of Hulme, Cheshire, from Gralam de Lostock, and was living in 1269. Father of:
 
 

        (4) Robert le Grosvenor, of Hulme, died before 1293, buried at Friar Minors; married Margery. Parents of:
 
 

        (5) Robert le Grosvenor, of Hulme, a minor in 1293, died homage in 1305, dead by 1328. He served in the Scotch War under King Edward II. He married Margery, and they were parents of:
 
 

        (6) Robert le Grosvenor, of Rudheath, afterwards of Hulme, died homage in 1328, died before 1342, and buried at Great Budworth. He married before 1323 Emma de Modburlegh, daughter and coheir ofWilliam de Modburlegh, by his wife Maud Downes, daughter and heir of Robert Downes. Emma was living as late as 1366 and brought to her husband lands in Chorlegh and Werford.

Children:

1. Ralph, mentioned below
2. Robert

        (7) Ralph de Grosvenor, mentioned in documents in 1342 and 1346, died before 1356 and buried at Nether Peover; married Joan. Parents of:
 
 
 

        (8) Sir Robert le Grosvenor, born about 1342, died 22 April 1396. He did homage in 1373, served in France from 1359 to 1360 under his father-in-law Sir John Danvers, and in 1369 to 1370 un der the Black Prince. He married first Margaret Danyers, who died June 1370; married second Joan de Pulford, daughter of Robert de Pulford, widow of Thomas de Belgrave, and heir to her brother, John de Pulford.
        In 1385, Robert le Grosvenor was one of three plaintiffs in perhaps the most famous heraldic trial in history. Not a word is found in the suit about the office of "Le Grosvenor" or "Grand Huntsman" to the Dukes of Normandy, which later Grosvenors claimed as the origin of their name. Robert and Joan were parents of:
 
 

        (9) Sir Thomas Grosvenor, born 1377, died 1429; married Joan Venables of Kinderton, Cheshire.

Children:

1. Robert, born about 1405, of Hulme, whose large properties were divided among his six daughters and coheirs.
2. Ralph, ancestors of the Grosvenors of Eaton, which branch received a baronetcy in 1622, a barony in 1761, and earldom in 1784, and later represented by the Duke of Westminster.
3. Thomas, mentioned below
4. Randall, ancestor of the Grosvenors of Warwick.

        (10) Thomas Grosvenor of Drayton, born about 1415; married Isabella Peshall, daughter of Richard Peshall of Chetwynd, Bellaport, Shropshire, England. Parents of:
 
 

        (11) Randall Grosvenor of Bellaport, Shropshire, England, born about 1450, died 1 March 1521/1522; married Margaret Mainwaring, daughter of Randall Mainwaring of Carincham, Cheshire, England. Parents of:
 
 

        (12) Randall Grosvenor of Bellaport, Shropshire, England, born about 1480, died in 1559/1560; married Anne Charlton, daughter of Richard Charlton of Apley, Shropshire.

Children:

1. Thomas, eldest son and heir, had daughter Elizabeth in 1558.
2. Geoffrey
3. Katherine; married Mr. Nash
4. Elizabeth, born about 1515, died about 1590 in England; married Thomas Bulkeley, of Woore, born about 1510-1515, died 1591.
5. Robert, had a son Thomas in 1558.
6. Margery
7. Randall
8. Henry