Guillaume de Saint-André
Guillaume de Saint- André( fl. 15th/ 16th centuries) was the secretary and biographer of John IV of Brittany.
John IV of Gaeta
John IV( died April or August 1012) was the eldest son of John III of Gaeta who was appointed co-duke in 991 while still young( he was a minor even in 994).
John succeeded his father in 1008 or 1009 and ruled for a brief four years.
John married Sichelgaita, daughter of John IV of Naples and sister of Sergius IV.
He left an infant, perhaps posthumous, son under the regency of his mother, Emilia.
His brother Leo fought for the regency and his cousin Leo tried to usurp the throne from the young John V.
Marie of Armagnac
Marie of Armagnac( c. 1420–1473) was a French noblewoman, daughter of John IV of Armagnac and his second wife, Isabella of Navarre.
Through her son, she would eventually become the great- grandmother of Henry IV of France.
John Perceval, 4th Earl of Egmont
John Perceval, 4th Earl of Egmont( 13 August 1767 – 31 December 1835), styled Viscount Perceval from 1770 to 1822, was a British peer and politician.
He was unsuccessful in his attempt to enter the House of Commons in 1790, but entered the House of Lords when he succeeded to the Barony in 1822.
Perceval was the only son of John Perceval, 3rd Earl of Egmont and his wife Isabella Paulet.
With the support of his father, he contested Bridgwater in the 1790 election in opposition to the Government.
However, the interest of Earl Poulett carried the day, returning the Earl's brother Vere Poulett and John Langston with 186 and 161 votes, respectively, while Lord Perceval only drew 87.
On 10 March 1792, Perceval married Bridget Wynn daughter of Glyn Wynn.
His father disapproved of the marriage, and did not attempt to put him up as a candidate again.
Percieval succeeded his father as Earl of Egmont in 1822.
As his father also held the British peerage of Baron Lovel and Holland, he entered the British House of Lords.
His wife Bridget died 24 January 1826 and he died on 31 December 1835.
They had one son Henry Perceval, 5th Earl of Egmont( 1796 – 1841).
Obata Toramori
He was the father of Obata Masamori.
John IV of Saxe-Lauenburg (prince-bishop)
John IV of Saxe- Lauenburg( c. 1483–1547) was a Prince- Bishop of Hildesheim.
John IV of Egmont
John IV of Egmont (or Egmond)
(1499, Egmond aan den Hoef – April 1528, near Ferrara) was second Count of Egmont, Lord of Hoogwoud, Aartswoud and Baer, and tenth Lord of Purmerend, Purmerland and Ilpendam.
John was the eldest surviving son of John III of Egmont and
Magdalena van Werdenburg.<br>
In 1516 he succeeded his father as Count of Egmont and was made a Knight in the Order of the Golden Fleece.
Charles V, Holy Roman Emperor made him in 1527 head of the light infantry in Naples and Milan.
One year later, John died near Ferrara, aged 29.
John IV, Duke of Saxe-Lauenburg
John IV of Saxe- Lauenburg( *?– 1414*) was a son of Duke Eric IV of Saxe- Lauenburg and Sophia of Brunswick- Lüneburg.
Bagrationi, wife of John IV of Trebizond
Bagrationi( c. 1411/2 – before 1438) was the first Empress consort of John IV of Trebizond.
Her name is unknown.
John III of Egmont
John III of Egmont (or Egmond)
(Hattem, April 3, 1438 – Egmond, August 21, 1516) was first Count of Egmont, Lord of Baer, Lathum, Hoogwoude, Aarstwoude, Purmerend, Purmerland and Ilpendam, and Stadtholder of Holland, Zeeland and West-Friesland.

Question: What is the place of birth of John Iv Of Egmont's father?