Abbot John Whethamstede’s Chronicle of the Abbey of St Albans
Abbot John Whethamstede's Register aka Chronicle of his second term at the Abbey of St Albans, 1451-1461, is a remarkable text that describes his first-hand experience of the beginning of the Wars of the Roses including the First and Second Battles of St Albans, 1455 and 1461, respectively, their cause, and their consequences, not least on the Abbey itself. His text also includes Loveday, Blore Heath, Northampton, the Act of Accord, Wakefield, and Towton, and ends with the Coronation of King Edward IV. In addition to the events of the Wars of the Roses, Abbot John, or his scribes who wrote the Chronicle, include details in the life of the Abbey such as charters, letters, land exchanges, visits by legates, and disputes, which provide a rich insight into the day-to-day life of the Abbey, and the challenges faced by its Abbot.
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Around 1154 Maria Komnenos Queen Jerusalem was born to [her father] John Doukas Komnenos [aged 28].
In 1157 [her future husband] Almaric I King Jerusalem [aged 21] and Agnes Courtenay Queen Jerusalem [aged 21] were married. She by marriage Queen Jerusalem. She the daughter of Joscelin Courtenay II Count Edessa. He the son of Fulk "Young" King Jerusalem and Melisende Queen of Jerusalem [aged 52]. They were third cousins.
On 10th February 1163 Baldwin III King Jerusalem [aged 33] died at Beirut. His brother [her future husband] Almaric [aged 27] succeeded I King Jerusalem.
In 1167 Almaric I King Jerusalem [aged 31] and Maria Komnenos Queen Jerusalem [aged 13] were married. She by marriage Queen Jerusalem. He the son of Fulk "Young" King Jerusalem and Melisende Queen of Jerusalem.
In 1172 [her daughter] Isabella Anjou Queen Jerusalem was born to [her husband] Almaric I King Jerusalem [aged 36] and Maria Komnenos Queen Jerusalem [aged 18]. She married (1) 1190 Conrad of Montferrat King of Jerusalem (2) 6th May 1192 her half third cousin twice removed Henry Blois II Count Champagne, son of Henry Blois I Count Champagne and Marie Capet Countess Champagne.
On 11th July 1174 [her husband] Almaric I King Jerusalem [aged 38] died. His son [her step-son] Baldwin [aged 13] succeeded IV King Jerusalem.
In September 1176 [her father] John Doukas Komnenos [aged 50] died.
In 1190 [her son-in-law] Conrad of Montferrat King of Jerusalem [aged 44] and Isabella Anjou Queen Jerusalem [aged 18] were married; see 
Ralph of Coggeshall. The difference in their ages was 26 years. She the daughter of Almaric I King Jerusalem and Maria Komnenos Queen Jerusalem [aged 36].
On 6th May 1192 [her son-in-law] Henry of Champagne [aged 25] and Isabella Anjou Queen Jerusalem [aged 20] were married eight days after the assassination of her husband Conrad of Montferrat [deceased]. She the daughter of Almaric I King Jerusalem and Maria Komnenos Queen Jerusalem [aged 38]. He the son of Henry Blois I Count Champagne and Marie Capet Countess Champagne [aged 47]. They were half third cousin twice removed. He a great x 2 grandson of King William "Conqueror" I of England.
On 5th April 1205 [her daughter] Isabella Anjou Queen Jerusalem [aged 33] died.
In 1217 Maria Komnenos Queen Jerusalem [aged 63] died.
Great x 2 Grandfather: Alexios I Komnenos
Great x 1 Grandfather: John II Komnenos
GrandFather: Andronikos Komnenos
Father: John Doukas Komnenos