Harvey III, Lord of Léon
Harvey III of Léon was the son of Harvey II of Léon and his first wife Anne of Hennebont.
Harvey IV, Lord of Léon
Harvey IV of Léon was the eldest son of Harvey III of Léon and his wife Margaret of Châteauneuf.
Harvey VII, Lord of Léon
Harvey VII of Léon( died 1344) was a Breton lord, son of Harvey VI, Lord of Léon and his wife Joanna of Montmorency.
He succeeded his father as Lord of Léon in 1337.
He was also Lord of Noyon- sur- Andelle.
The Lords of Léon were a junior branch of the Viscounts of Léon which was founded by Harvey I, second son of Guihomar IV, Viscount of Léon.
Harvey VII won fame during the War of the Breton Succession.
Harvey II, Lord of Léon
Harvey II of Léon was the son of Harvey I, Lord of Léon, the founding member of the Lordship of Léon.
Harvey I, Viscount of Léon
Harvey I of Léon( c. 1068 – aft. 1128) was a Viscount of Léon.
Harvey V, Lord of Léon
Harvey V of Léon was the eldest son of Harvey IV of Léon and his wife Maud of Poissy.
Guihomar I, Viscount of Léon
Guihomar I of Léon was one of the first Viscounts of Léon.
He lived c. 970- 1055.
Lomer Gouin
Sir Jean Lomer Gouin, (March 19, 1861 – March 28, 1929) was a Canadian politician.
He served as 13th Premier of the Canadian province of Quebec, as a Cabinet minister in the federal government of Canada, and as the 15th Lieutenant Governor of Quebec.
Harvey VI, Lord of Léon
Harvey VI of Léon, nicknamed" the Young",( died 1337) was the eldest son of Harvey V, Lord of Léon.
Léon Mercier Gouin
Léon Mercier Gouin (December 24, 1891 – October 16, 1983) was a French Canadian author, barrister, professor, and politician.
Born in Montreal, Quebec, the eldest son of Lomer Gouin, the Premier of Quebec from 1905 to 1920, and the grandson of Honoré Mercier, the Quebec Premier from 1887 to 1891, he received a Bachelor's degree from Loyola College in 1911 and studied at Oxford University.
His brother, Paul Gouin, was also a politician.
In 1917, he married Yvette Ollivier.
They had four children: Lisette, Lomer, Thérèse and Olivier.
Gouin was appointed to the Senate of Canada in 1940 representing the senatorial division of De Salaberry, Quebec.
A Liberal, he resigned in 1976.

Question: When is Léon Mercier Gouin's father's birthday?
Answer: March 19, 1861