Reginald I, Count of Burgundy (968–1057), Count of the Free County of Burgundy from 1026
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Reginald I, Count of Bar (died 1149), called "the One-eyed", Count of Bar from 1105
Reginald VelJohnson | Reginald Heber | Reginald Punnett | Reginald Victor Jones | Reginald Rose | Reginald Robinson | Reginald Maudling | Reginald Farrer | Reginald Ernest Moreau | Reginald D. Hunter | The Fall and Rise of Reginald Perrin | George Reginald Starr | Reginald Manningham-Buller, 1st Viscount Dilhorne | Reginald Drax | Reginald De Koven | Reginald de Grey, 1st Baron Grey de Wilton | Reginald Bosanquet | Reginald | Sir Reginald Neville, 1st Baronet | Reginald Warneford | Reginald Southey | Reginald Pecock | Reginald Marsh | Reginald Manningham-Buller | Reginald Kell | Reginald James Blewitt | Reginald Horace Blyth | Reginald Goodall | Reginald Garrigou-Lagrange | Reginald Fessenden |
Siegfried II of Westerburg, the Archishop of Cologne and ruler of the Electorate of Cologne, traditional enemy of the Duke of Brabant, forged an alliance with Reginald I, joined by Henry VI, Count of Luxembourg, and his brother Waleran I of Luxembourg, Lord of Ligny, as well as by Adolf, King of Germany.