| Name | Born/ Baptised | Died/ Buried |
|---|
Sort by: Firstname  Lastname | Date | Place | Date | Place |
|---|
 | Aldeburgh, William, 1st Baron Aldeburgh & Elizabeth Unknown | | | † 1388 | |
| | Anderson, William | * ± 1847 | * Cockburnspath, Berwickshire, Scotland | | |
| | Anderson, William | * 11 Jul 1867 | * Eyemouth, Berwickshire, Scotland | | |
| | Anderson, William | * ± 1907 | * Blyth, Northumberland, England | | |
| | Anderson, William X Isabella Watt | * 8 Sep 1771 | * Cockburnspath, Berwickshire, Scotland | † between 1841 and 1851 | † Cockburnspath, Berwickshire, Scotland |
| | Angoulême, William I of, Count of Angoulême & Unknown | | | † 8 Aug 962 | |
| | Angoulême, William II of, Count of Angoulême & Gerberga d'Anjou | * ± 952 | | † 6 Apr 1028 | |
| | Angoulême, William V of, Count of Angoulême & Vitapoy de Benauges | | | † ± 1120 | |
| | Angoulême, William VI of, Count of Angoulême & Margaret of Turin | * ± 1115 | | † 7 Aug 1179 | † Messina, Sicilia, Italy |
| | Apps, William & Mary Ann Unknown | * ± 1723 | ~ Ticehurst, Sussex, England | † 1799 | † Brenchley, Kent, England |
| | Aquitaine, William III of, Duke of Aquitaine, Count of the Duchy of Aquitaine, Count of Poitiers, Count of Auvergne & Adele of Normandy | * 915 | | † 3 Apr 963 | |
| | Aquitaine, William IV of, , Duke of Aquitaine, Count of Poitiers & Emma de Blois | * 937 | | † 3 Feb 993/94 | |
| | Aquitaine, William IX of, Duke of Aquitaine and Gascony, Count of Poitiers & Philippa of Toulouse, Countess of Toulouse | * 22 Oct 1071 | | † 10 Feb 1125/26 | |
| | Aquitaine, William V of, Duke of Aquitaine, Count of Poitiers & Agnes of Burgundy | * 969 | | † 31 Jan 1029/30 | |
| | Aquitaine, William VIII of, Duke of Aquitaine, Duke of Gascony, Count of Poitiers & Hildegarde of Burgundy | * ± 1025 | | † 25 Sep 1086 | |
| | Aquitaine, William X of, Duke of Aquitaine and Gascony, Count of Poitiers & Aenor of Châtellerault | * 1099 | | † 9 Apr 1137 | |
| | Arthur, William | * ± 1726 | * Kirkharle, Northumberland, England | | |
| | Arthur, William X Margaret Brown | | | † ± Jan 1772 | † Kirkharle, Northumberland, England |
| | Aton, William d' & N.N. | | | | |
| | Aton, William d' & Isabel de Vere | * 1219 | | † before 1285 | |
| | Aubigny, William d' & Maud Bigod | | | | |
| | Aubigny, William, 1st Earl of Arundel d' X Adeliza of Louvain | * ± 1109 | | † 25 Sep 1176 | |
| | Aubigny, William, 2nd Earl of Arundel, Earl of Sussex d' X Maud de Saint Hilaire | * before 1150 | | † 24 Dec 1193 | |
| | Aubigny, William, 3rd Earl of Arundel d' & Mabel of Chester | * before 1180 | | † 1 Feb 1220/21 | |
| | Back, William | * 1808 | * Whinburgh, Norfolk, England | † 1868 | † Hingham, Norfolk, England |
| | Back, William | * 1807 | * Whinburgh, Norfolk, England | † 1807 | † Whinburgh, Norfolk, England |
| | Back, William X Frances Reeve | * ± 1779 | | † Sep 1827 | † Hingham, Norfolk, England |
| | Bagehot, William | * before 1532 | | † 1578 | † Prestbury, Gloucestershire, England |
| | Bagehot, William & Alice Martin | | | † 1578 | |
| | Ball, John William | * 1893 | | | |
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