Friedrich I was born in Karlsruhe, on September 9, 1826. He was the third son of Grand Duke Leopold (1790-1852) and of his wife, Grand Duchess Sophie (1801-1865), who was born Princess of Sweden, daughter of King Gustav IV Adolf of Sweden.
He became the heir to the Grand Duchy upon the death of his father in 1852 and the accession of his brother as Grand Duke Ludwig II. Due to his brother's mental ill-health, he was Regent ad interim of Baden in 1852-1855, and took the title of Grand Duke in 1856. His brother, Ludwig II, died in 1858. He was considered a relatively liberal supporter of a constitutional monarchy. During his reign the option of civil marriages were introduced in Baden as well as direct elections to the Lower House of the Parliament of Baden in 1904.
|Grand Duke Frederick II of Baden||July 9 1857||August 9 1928||Married Princess Hilda of Luxembourg, no issue.|
|Queen Victoria of Sweden||August 7, 1862||April 4 1930||Married King Gustav V of Sweden, had issue.|
|Prince Ludwig of Baden||June 12 1865||February 23 1888||Died unmarried, no issue.|
Friedrich I was present at the proclamation of the German Empire at Versailles in 1871, as he was the only son-in-law of the Emperor and one of the reigning sovereigns of Germany. He died at his summer residence at the island of Mainau in southern Germany on September 28, 1907. Today, Mainau is owned by the Lennart Bernadotte-Stiftung (the Lennart Bernadotte Foundation), created by Fredericks great-grandson Count Lennart Bernadotte, (1909-2005).