What was the relationship between FDR and Teddy Roosevelt?

Also asked, why did FDR marry his cousin?

Returning to the U.S., she married her fifth cousin once removed, Franklin Delano Roosevelt, in 1905. She persuaded Franklin to stay in politics after he was stricken with a paralytic illness in 1921, which cost him the normal use of his legs, and began giving speeches and appearing at campaign events in his place.

Subsequently, question is, was Theodore Roosevelt the father of Franklin Roosevelt? Theodore Roosevelt Jr. in 1858, who became the 26th President of the United States. Elliott Bulloch Roosevelt in 1860, who was the father of future First Lady Eleanor Roosevelt and father-in-law of President Franklin D.

In respect to this, was Teddy Roosevelt Franklin's uncle?

Phillipe Delano via Sara Roosevelt Frederic Adrian Delano via Sara Roosevelt John Aspinwall Roosevelt via James Roosevelt I

Did Teddy Roosevelt's son died at Normandy?

He had spent part of the day in a long conversation with his son, Captain Quentin Roosevelt II, who had also landed at Normandy on D-Day. He was stricken at about 10:00 PM, attended by medical help, and died at about midnight. He was fifty-six years old.