Events

• Ruaidri Ua Conchobair (Rory O'Conner), last High King of Ireland, submits to Henry II as vassal of Ireland with the Treaty of Windsor
• Ly Cao Ton becomes ruler of Vietnam
• William of Tyre becomes archbishop of Tyre
• Massacre of Abergavenny ends with several noblemen dead at the hands of William de Braose
• Vordingborg Castle completed

Births

• Andrew II, King of Hungary (died 1235)
• Frederick I of Austria (died 1198)
• Robert Grosseteste, English statesman, theologian and bishop (approximate date; died 1253)
• Fibonacci, Italian mathematician (approximate date; died 1250)
• Otto IV, Holy Roman Emperor (died 1218)
• Roger III of Sicily (died 1194)
• Michael Scot, Scottish mathematician and astrologer (died 1232)

Deaths

• June 28 - Andrei Bogolyubsky, Russian prince
• King Mleh of Armenia

1175

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