1140s in architecture

Buildings

 * About 1140
 * Church of Santa Maria e San Donato in Murano, Republic of Venice completed.
 * Rudra Mahalaya Temple in Siddhpur, India, completed.
 * Church of St Mary and St David, Kilpeck, and first stone Church of St John the Evangelist, Shobdon, both by members of the Herefordshire School in England, built.
 * Great church of Cîteaux Abbey begun.
 * 1143 – In the Kingdom of Sicily
 * Trani Cathedral completed (except the campanile).
 * Mosaic decoration of Cappella Palatina in Palazzo dei Normanni, Palermo, partly completed.
 * 1144: June 11 – Basilica of St Denis near Paris in the Kingdom of France consecrated, the first Gothic church.
 * 1145 – Basilica of Sainte-Trinité, Cherbourg-en-Cotentin, Normandy, consecrated.
 * 1147
 * Basilica of San Frediano in Lucca completed.
 * Saint-Pierre de Montmartre in Paris consecrated.
 * 1149 – Akebäck Church on Gotland is inaugurated.
 * 1149: July 15 – Church of the Holy Sepulchre in Jerusalem consecrated after reconstruction.
 * Probable decade – Lyngsjö Church, Sweden, built.

Births

 * Adela of Champagne, Queen of France
 * Alan Fitz Walter, High Steward of Scotland
 * Eliezer ben Joel HaLevi, German rabbi