The Duke of Devonshire's descent from King Henry VII

 The Duke of Devonshire descends from the first Tudor King Henry VII. He may of course have multiple descents, but I show only one line here. 

King Henry VII = Elizabeth of York

I

Mary Tudor = Charles Brandon, Duke of Suffolk

(1496-1533)

I

Lady Frances Brandon = Henry Grey, Marquis of Dorset and 1st Duke of Suffolk

(d 1559)

I

Lady Katherine Grey = Edward Seymour, 1st Earl of Hertford

(1538-1567/8)

I

Edward Seymour, Lord Beauchamp = Honora Rogers

(1561-1612)

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William Seymour, 2nd Duke of Somerset = Lady Frances Devereux

(1588-1660)

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Lady Mary Seymour = Heneage Finch, 3rd Earl of Winchilsea

(d 1673)

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Lady Frances Finch = Thomas, Viscount Weymouth

(d 1712)

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Frances Thynne = Sir Robert Worsley, 4th Bt

(d 1750)

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Frances Worsley = John Carteret, 2nd Earl Granville

(1693/4-1743)

 I

Lady Georgiana Caroline Carteret = Hon John Spencer

(d 1780)

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John, 1st Earl Spencer = Margaret Georgiana Poyntz

(1734-83)

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Lady Georgiana Spencer = William Cavendish, 5th Duke of Devonshire

(1757-1806)

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Lady Georgiana Dorothy Cavendish = George Howard, 6th Earl of Carlisle

(1783-1858)

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Lady Blanche Georgiana Howard = William Cavendish, 7th Duke of Devonshire

(1812-40)

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Lord Edward Cavendish, MP = Hon Emma Elizabeth Lascelles

(1838-91)

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Victor Cavendish, 9th Duke of Devonshire, KG, GCMG, GCVO, PC = Lady Evelyn Petty-Fitzmaurice

(1868-1938)

I

Edward Cavendish, 10th Duke of Devonshire, KG = Lady Mary Alice Gascoyne-Cecil

(1895-1950)

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Andrew Cavendish, 11th Duke of Devonshire, KG, PC, MC = Hon Deborah Freeman-Mitford

(1920-2004)

I

Peregrine Cavendish, 12th Duke of Devonshire, KCVO =Amanda Carmen Heywood-Lonsdale

(born 27 Apr 1944)

Source: *The Blood Royal of Britain: Being a Roll of the Livng Descendants of Edward IV and Henry VII, Kings of England and James III, King of Scotland, by the Marquis of Ruvigny & Raineval (published by TC & EC Jack, London & Edinburgh, 1903)*.