Henry Grey, 1st Lord Grey of Groby (1547 – 26 July 1614) was an English landowner, soldier, courtier, magistrate, county administrator, and member of parliament.  
Among many other roles, he was a member of the Honourable Corps of Gentlemen at Arms and Master of the Buckhounds.
He was the only surviving son of Lord John Grey, son of Thomas Grey, 2nd Marquess of Dorset, and Mary Browne, daughter of Sir Anthony Browne and his first wife, Alice Gage.   It is believed he was educated at Christ Church, Oxford, where a Henry Grey graduated first with a Bachelor of Arts on 1 February 1565, followed by a Master of Arts on 18 June 1568. He was knighted on 11 November 1587.  
Grey's main ambition was to re-establish his family's position in Leicestershire lost by his father's attainder. Henry succeeded to his father's estate at Pirgo near Havering Essex when aged 17. Five years later he was appointed one of the Queen's Gentlemen Pensioners and was lieutenant of the band – head personal bodyguard – from 1589 to 1603. He attended on the Queen six months of each year. Otherwise based 20 miles away at Pirgo in Essex he filled many local and county duties, was appointed deputy lieutenant of the county from 1586-1590 and was elected knight of the shire (MP) for the county of Essex in 1589.  He was made Master of the Buckhounds in 1596. 
He had been put on the commission of the peace for Essex about 1569 and in 1600 was described as the county's senior justice. His efforts for Queen and county were recognised and the completion of his court duties noted when another cousin, James I, four days before his coronation, raised him to the peerage on 21 July 1603 as Baron Grey of Groby, Leicestershire. 
By this time, 1603, he had managed to reacquire most of his family's estates lost by his father's attainder. Those in Leicestershire centred on Bradgate House in its manor of Groby, a few miles from Leicester. As the new Lord Grey of Groby, aged 58, he took up residence at Bradgate and devoted most of his energies to strengthening his family's position in the County. This included reviving the feud and intense competition between the Greys and the Hastings earls of Huntingdon which had enlivened and divided Leicestershire for much of the early sixteenth century. 
Grey married Anne (1542–1613/14), daughter of William, 2nd Lord Windsor of Bradenham, Buckinghamshire.
Henry and Anne had four sons and two daughters including:
Grey died at Bradgate House on 26 July 1614, newly widowed, and was buried in the family chapel there. He was succeeded in the barony by his grandson Henry, who later become the first Earl of Stamford. 
The arms of the head of the Grey family are blazoned Barry of six argent and azure in chief three torteaux gules.[ citation needed ]
Thomas Grey, Lord Grey of Groby, was an elected Member of Parliament for Leicester during the English Long Parliament, an active member of the Parliamentary party and a regicide. He was the eldest son of Henry Grey, 1st Earl of Stamford, using his father's as his own courtesy title, and Anne Cecil, daughter of William Cecil, 2nd Earl of Exeter.
Henry Grey, 1st Earl of Stamford, known as the Lord Grey of Groby from 1614 to 1628, was an English nobleman and military leader. He was the eldest son of Sir John Grey and Elizabeth Nevill. His mother was probably a daughter of Edward Nevill, 8th Baron Bergavenny and his wife Rachel Lennard.
Henry Grey, 1st Duke of Suffolk, 3rd Marquess of Dorset, was an English courtier and nobleman of the Tudor period. He was the father of Lady Jane Grey, known as "the Nine Days' Queen".
Earl of Stamford was a title in the Peerage of England. It was created in 1628 for Henry Grey, 2nd Baron Grey of Groby. This Grey family descended through Lord John Grey, of Pirgo, Essex, younger son of Thomas Grey, 2nd Marquess of Dorset, and younger brother of Henry Grey, 1st Duke of Suffolk ; Suffolk was executed for treason in 1554 forfeiting his titles.
Baron Ferrers of Groby was a title in the Peerage of England. It was created by writ on 29 December 1299 when William Ferrers, 1st Baron Ferrers of Groby was summoned to parliament. He was the son of Sir William de Ferrers, Knt., of Groby, Leicestershire, (d.1287) by his first wife Anne Durward, 2nd daughter of Alan Durward and his wife Margery of Scotland, and grandson of William de Ferrers, 5th Earl of Derby. The first Baron was married to Ellen de Menteith, daughter of Alexander, Earl of Menteith. In 1475 the eighth baron was created the Marquess of Dorset, and the barony in effect merged with the marquessate. It was forfeited along with the marquessate when the third marquess was attainted in 1554.
Pyrgo Park is a park at Havering-atte-Bower in the London Borough of Havering, in North East London, England. It is the site of the former Pirgo Palace, built before 1540 and demolished by 1814; and of Pyrgo House, built 1852, which lasted less than a century.
Sir John Grey, of Groby, Leicestershire was a Lancastrian knight, the first husband of Elizabeth Woodville who later married King Edward IV of England, and great-great-grandfather of Lady Jane Grey.
Groby Old Hall is partly a 15th-century brick-built manor house and grade II* listed building located very near the site of Groby Castle in the village of Groby in Leicestershire.
George Harry Booth-Grey, 7th Earl of Stamford and 3rd Earl of Warrington was an English cricketer, landowner and peer, who sat on the Whig benches in the House of Lords.
Thomas Grey, 2nd Marquess of Dorset was an English peer, courtier, soldier, and landowner of the House of Grey.
Sir Nicholas Bacon, 1st Baronet, of Redgrave, Suffolk, English Member of Parliament. In 1611 he was the first man to be created a baronet. Bacon would serve on many commissions. The Privy Council constantly called upon him to conduct inquiries. Bacon was a leader of puritanism in Suffolk. The power and prestige of the puritan ministries in many areas of the country owed their power to Bacon. Sir Nicholas Bacon was considered a good Christian by his contemporaries. Especially his chaplain, Robert Allen. Robert Allen stated that Sir Bacon's wife was dedicated to "God's holy religion and worship by every good and Christian means in the sight of men." Allen would even dedicate his Doctrine of the Gospel to Sir Nicholas and other members of the family.
Margaret Wotton, Marchioness of Dorset was the second wife of Thomas Grey, 2nd Marquess of Dorset, and the mother of his children, including Henry Grey, 1st Duke of Suffolk, with whom she engaged in many quarrels during his minority over money and his allowance. Her lack of generosity to Henry shocked her peers as unmotherly, and inappropriate behaviour toward a high-ranking nobleman, relative of King Henry VIII of England. In 1534, she was compelled to answer to the charges that she was an "unnatural mother".
Lord John Grey was an English nobleman and courtier of the Tudor period, who after 1559 was seated at Pirgo Place in Essex.
Sir Thomas Felton, 4th Baronet, of Whitehall, Westminster and Playford, Suffolk, was an English courtier and Whig politician who sat in the House of Commons between 1690 and 1709.
Sir Henry Felton, 2nd Baronet was an English politician who sat in the House of Commons between 1656 and 1679.
Thomas Gawdy, of Shotesham and Redenhall, Norfolk, was Serjeant-at-law, an English barrister, Recorder, and member of parliament.
Bassingbourne Gawdy, of West Harling, Norfolk, was an English landowner, magistrate and Member of Parliament (MP).
SirBassingbourne Gawdy, of West Harling, Norfolk, was an English lawyer and judge, knight, and Member of Parliament.
Bradgate House is a 16th-century ruin in Bradgate Park, Leicestershire, England.
Sir John Gawdy, 2nd Baronet was a Norfolk baronet and portrait miniaturist.