What Happened This Year 1646

All Events 1 Births 21 Deaths 21

Born in 1646

Maria Francisca of Savoy

Queen consort of Portugal, influential figure

Born

1646 380 years ago

Died

December 27th, 1683 342 years ago — 37 years old

Married to King Afonso VI of Portugal, played a significant role in the court dynamics during the 17th century. Accumulated influence amidst political turmoil and personal challenges, including her husband's mental health issues. Oversaw cultural and diplomatic affairs, representing Portuguese interests in various European courts. Contributed to the lineage of the Portuguese monarchy through her children. Lived through significant historical events in Portugal's history, including territorial conflicts and shifts in power.

Gottfried Leibniz

German mathematician and philosopher

Born

1646 380 years ago

Died

November 14th, 1716 309 years ago — 70 years old

An influential mathematician and philosopher, contributions to calculus alongside Isaac Newton formed a crucial foundation in mathematics. Developed the binary number system, which is widely used in computer science today. Engaged in philosophical discourse addressing metaphysics and logic, notably by proposing the idea of monads. Established the beginnings of modern logic. Formulated principles of calculus including the product rule and quotient rule, impacting subsequent mathematical thought and development.

Philips van Almonde

Dutch admiral and naval leader

Born

1646 380 years ago

Died

January 6th, 1711 315 years ago — 65 years old

Served as a prominent admiral in the Dutch Navy during the late 17th century. Led naval operations during several key conflicts, including the War of the Spanish Succession. Played a critical role in the Battle of Vigo Bay in 1702, which significantly influenced the naval strategies of the time. Managed various naval expeditions and was involved in the administration of naval matters in the Dutch Republic.