Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Edward Devereux, 11th Viscount Hereford
Edward Devereux, 11th Viscount Hereford( c. 1710 – 20 August 1760) was a British peer and the 11th Viscount Hereford.
George Devereux, 13th Viscount Hereford
George Devereux, 13th Viscount Hereford( 25 April 1744 – 31 December 1804) was a British Peer.
He was the second son of Edward Devereux, 11th Viscount Hereford and his wife Catherine Mytton.
His maternal grandparents were Richard Mytton of Pontyscowryd and Garth, High Sheriff of Montgomeryshire and Dorothy Wynn.
On 15 December 1768, George married his 3rd cousin, Marianna Devereux.
His namesake father- in- law was George Devereux of Tregoyd.
They had five children:
His older brother Edward Devereux, 12th Viscount Hereford had succeeded their father but died childless on 1 August 1783.
George succeeded him and further Viscount Hereford descent from him.
Leicester Devereux, 7th Viscount Hereford
Leicester Devereux, 7th Viscount Hereford (1674–1683) was a British Peer.
He was the eldest son of Leicester Devereux, 6th Viscount Hereford (1617–1676) and succeeded to the title as an infant.
He died young and was succeeded by his younger brother Edward.
Edward died at the age of 25 in 1700 and the viscountcy passed to a Welsh cousin Price Devereux of Vaynor Park, Montgomeryshire.
Edward's sister Anne outlived her brothers, becoming the heiress: she married Leicester Martin.
Price Devereux, 10th Viscount Hereford
Price Devereux, 10th Viscount Hereford( 9 June 1694 – 29 July 1748) was a British Tory politician who sat in the House of Commons from 1719 to 1740 when he succeeded to a peerage as Viscount Hereford.
Devereux was the son of Price Devereux, 9th Viscount Hereford and his wife Mary Sandys, daughter of Samuel Sandys of Ombersley Court, Worcestershire.
He entered Balliol College, Oxford in 1711.
In 1719 Devereux was High Sheriff of Brecknockshire, having inherited the estate of the Morgans of Pencoyd near Hay- on- Wye.
The same year he was returned unopposed at a by-election as Member of Parliament for Montgomeryshire.
He was returned again for Montgomeryshire at the general elections of 1722 and 1727.
In 1727 he was also returned as MP for Orford but preferred to represent Montgomeryshire where he was returned again at the 1734 general election.
In 1740 he surrendered his seat when, on the death of his father, he succeeded to the peerage as Viscount Hereford, premier viscount of England, inheriting Vaynor Park in Montgomery.
He married as his second wife( 1740) a daughter of William Price of Rhiwlas, Merioneth.
On Devereux' death on 29 July 1748, the title passed to Edward Devereux, a distant cousin in Nantcribba, Montgomeryshire and the estate at Vaynor Park was sold.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Leicester Devereux, 6th Viscount Hereford
Leicester Devereux, 6th Viscount Hereford (1617 – 1 December 1676) was a British Peer.
He was the second son of Walter Devereux, 5th Viscount Hereford (1578–1658).
He married Elizabeth Withipoll, daughter and sole heiress of Sir William Withipoll who inherited Christchurch Mansion, Ipswich.
His second wife was Priscilla Catchpole.
His daughter Frances married William Tracy, 4th Viscount Tracy (1657–1712).
He was succeeded by his sons
Leicester and Edward.
His daughter Anne outlived her brothers and sister, becoming his heiress: she married Leicester Martin.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Robert Devereux, 18th Viscount Hereford
Robert Milo Leicester Devereux, 18th Viscount Hereford( 4 November 1932 – 25 February 2004) was a member of the House of Lords and Premier Viscount of England.
Price Devereux, 9th Viscount Hereford
Price Devereux, 9th Viscount Hereford( 1664 – 3 October 1740) of Vaynor Park, Montgomeryshire and Ombersley Court, Worcestershire was a British Peer.
He was the son of Price Devereux( who died before his own father in 1666) and grandson of Sir George Devereux, younger brother of Walter Devereux, 5th Viscount Hereford( 1578 – 1658).
He succeeded to his grandfather's estate at Vaynor Park in 1682 and to the viscountcy in 1700 when Edward Devereux, 8th Viscount Hereford died without an heir.
He was Member of Parliament for Montgomery from 1691 until his succession in 1700.
He was Custos Rotulorum of Montgomeryshire from 1711 to 1714.
He married in 1683 Mary, the daughter of Samuel Sandys of Ombersley Court, Worcs and was succeeded by their only son Price Devereux, 10th Viscount Hereford.

Question: Who is the paternal grandfather of Leicester Devereux, 7Th Viscount Hereford?
Answer: Walter Devereux, 5th Viscount Hereford