- Reginald Devereux
- William de Ferrieres
Birth - about 1140 - Of, Tutbury, Staffordshire, England - William "Earl Of Arundel" D' Aubigny
Birth - about 1140 - Of, Buckenham, Norfolk, England - Maud Saint Liz
- Jitzhak ben Jehuda Treves
- Rabbi Jom Tov ben Yehuda Falaise
Death - 1140 - Paris, lie-de France, France - Sune Skjalmsen Hvide
Death - about 1140 - Sorø, Sjælland, Denmark - Otto I Rantzau von Leisnig
- Goda de Toni
Birth - about 1140 - Of Eggington, Derbyshire, England - Mrs-Mauger Le Vavasour
- Amaury (Almaricus) de Montfort
- Lucia de Clifford
Birth - about 1140 - Ofcliffordcastle, , Herefordshire, England - Walter de Clifford
Birth - about 1140 - Clifford Castle, , Herts, England - Miss de Spileman
Birth - about 1140 - Of, Standish, Lancashire, England - Walter Bolebec
Birth - about 1140 - , Blancland, North Hampshire, England - Constanza Alfonsez Princess Castile
Birth - after 1140 - Of, Toledo, Toledo, Spain - Manolis Laskaris
Birth - about 1140 - Of Nicaea, Bursa, Turkey - Alix (Adele) Countess Champagne
Birth - about 1140 - Of, Blois Loir-et-Cher, France - Otto I (V) Bavaria
- Geoffrey de Neville
Birth - about 1140 - Of, Horncastle, Lincolnshire, England - Hamon Massey
Death - about 1140 - , Dunham Massey, Cheshire, England - Hodierna, Princess Of Scotland
Death - about 1140 - UNMD, , , Scotland - William Venables
Birth - about 1140 - Of Kinderton, Cheshire, England - Herluf NN
- Roger, Earl Of Buchan
Birth - about 1140 - Of, BUCHAN, Aberdeenshire, Scotland - William Belward Egerton
Birth - about 1140 - Of Mallpas, Chesh, Eng - Cynan Ap Owain
Birth - about 1140 - Of, , Caernarvonshire, Wales - Kunigunde von Weimar
- Vulgrin Ii Taillefer
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