List of Famous people born on April 21st

Frederick II, Duke of Holstein-Gottorp was a Danish-German nobleman. He was the eldest son of Duke Adolf of Holstein-Gottorp and his wife, Christine of Hesse (1543-1604).

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Archduke Wilhelm Franz Karl of Austria-Teschen was an Archduke of Austria from the House of Habsburg.

Edward Smith-Stanley, 13th Earl of Derby, KG, of Knowsley Hall in Lancashire, was a politician, peer, landowner, builder, farmer, art collector and naturalist. He was the patron of the writer Edward Lear.

Valérie André is a veteran of the French resistance, a neurosurgeon, an aviator and the first female member of the military to achieve the rank of General Officer, in 1976, as Physician General. In 1981, she was promoted to Inspector General of Medicine. A helicopter pilot, she is the first woman to have piloted a helicopter in a combat zone. She is also a founding member of the Académie de l'air et de l'espace.

Hirokazu Shiba is a Japanese politician of the Democratic Party of Japan, a member of the House of Councillors in the Diet.