Pietro Luigi Speranza
Pietro Luigi Speranza( 1801- 1879) was the Bishop of Bergamo from 1854 to his death 25 years later.
In 1868 he recognized the Congregation of the Holy Family of Bergamo.
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
Prince Adalberto, Duke of Bergamo
Prince Adalberto of Savoy, Duke of Bergamo ("Adalberto Luitpoldo Elena Giuseppe Maria")
(19 March 1898 – 15 December 1982) was an Italian General and a member of the Genoa branch of the House of Savoy.
Born in Turin, Prince Adalberto was the fourth son of Prince Thomas of Savoy, Duke of Genoa and his wife Princess Isabella of Bavaria (1863–1924).
On 22 September 1904 he was given the title Duke of Bergamo.
Prince Adalberto pursued a career in the Royal Italian Army achieving the rank of General.<br>
He fought in the First World War on the Montello in October 1917 and in Vallagarina in February 1918.
In 1936 he commanded the Italian 24 Infantry Division Gran Sasso during the Second Italo-Ethiopian War and later the 58th Infantry Division Legnano.
When Italy joined World War II, he became commander of the Italian 8th Army (1940–1942), and in 1943 of the 7th Army.
After the war he lived a fairly anonymous life until his death in 1982.
Prince Adalberto never married and had no children.
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.
William Montagu Douglas Scott, 6th Duke of Buccleuch
William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry( 9 September 1831 – 5 November 1914) was a Scottish Member of Parliament and peer.
He was the paternal grandfather of Princess Alice, Duchess of Gloucester, and the maternal great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.
He was a paternal great- great- grandfather to Sarah, Duchess of York.
Thomas Howard, 2nd Duke of Norfolk
Thomas Howard, 2nd Duke of Norfolk( 144321 May 1524), styled Earl of Surrey from 1483 to 1485 and again from 1489 to 1514, was an English nobleman and politician.
He was the eldest son of John Howard, 1st Duke of Norfolk, by his first wife, Catharina de Moleyns.
The Duke was the grandfather of both Queen Anne Boleyn and Queen Catherine Howard and the great grandfather of Queen Elizabeth I.
He served four monarchs as a soldier and statesman.
Princess Isabella of Bavaria
Princess Isabella of Bavaria (
Marie Elisabeth Luise Amalie Elvire Blanche Eleonore; 31 August 1863 – 26 February 1924) was the third child and eldest daughter of Prince Adalbert of Bavaria and his wife Infanta Amalia of Spain.
By her marriage to Prince Thomas, Duke of Genoa, she became referred to as the Duchess of Genoa.
Richard Wesley, 1st Baron Mornington
Richard Colley Wesley, 1st Baron Mornington (– 31 January 1758) was an Irish peer, best remembered as the grandfather of Arthur Wellesley, 1st Duke of Wellington.
Francesco Beschi
Francesco Beschi is the current bishop of Bergamo.

Question: Who is the maternal grandfather of Prince Adalberto, Duke Of Bergamo?
Answer: Prince Adalbert of Bavaria