From 1108 on Henry V made official proposals for a marriage with a princess of the English royal family, seeking to increase the authority of the Salian king and secure his throne.
His engagement with the eight-year-old princess Matilda took place in Utrecht at Easter of 1110.
The Anglo-Norman King Henry I of England paid the extraordinarily high sum of 10,000 or 15,000 pounds of silver as dowry.
In return, his daughter's marriage to Henry V. enormously increased his prestige.
On July 25, 1110 Matilda was crowned Roman-German Queen in Mainz by the Archbishop of Cologne.
Four years later the wedding celebrations also took  place in Mainz on January 7, 1114 amid great splendor and the attention of princes from all over the empire.
The Salians appropriated the occasion to reaffirm unanimity with the imperial nobles after the conflicts in recent years.
Duke Lothair of Supplinburg appeared barefoot and in penitent clothing at the wedding.
He was forgiven for his participation in the inheritance disputes of Carniola after performing a Deditio (submission).
This occasion is the only known case of a Deditio during Henry V's reign, which historians have compared to the amicable set of rules and conflict management and settlement of the Ottonian dynasty.
On the other hand, Henry had count Louis of Thuringia captured and imprisoned for his participation in the Saxon rebellion, which upset many princes.
Henry's impertinent demonstrations of power, greatly diminished the overall atmosphere of the festivity.
Some princes left the festival without permission, as others used the opportunity for conspiracies.

The marriage to Matilda produced no male heirs.
The chronicler Hériman of Tournai mentions a child of Henry and Matilda that died soon after birth.
A single source mentions a daughter of Henry named Bertha, who was probably illegitimate.
She married Count Ptolemy II of Tusculum in 1117.
The emperor's bond with the nobility of Rome through marriage was unique.
In his conflict with the Pope and the struggle for domination in Italy, the Tusculan marriages of imperial partisans would receive particular honor.

Eventually, affairs in Italy compelled Henry to leave and appoint duke Frederick II of Hohenstaufen and his brother Conrad, the future king Conrad III as administrators.
From 1108 on Henry V made official proposals for a marriage with a princess of the English royal family, seeking to increase the authority of the Salian king and secure his throne. His engagement with the eight-year-old princess Matilda took place in Utrecht at Easter of 1110. The Anglo-Norman King Henry I of England paid the extraordinarily high sum of 10,000 or 15,000 pounds of silver as dowry. In return, his daughter's marriage to Henry V. enormously increased his prestige. On July 25, 1110 Matilda was crowned Roman-German Queen in Mainz by the Archbishop of Cologne. Four years later the wedding celebrations also took  place in Mainz on January 7, 1114 amid great splendor and the attention of princes from all over the empire. The Salians appropriated the occasion to reaffirm unanimity with the imperial nobles after the conflicts in recent years. Duke Lothair of Supplinburg appeared barefoot and in penitent clothing at the wedding. He was forgiven for his participation in the inheritance disputes of Carniola after performing a Deditio (submission). This occasion is the only known case of a Deditio during Henry V's reign, which historians have compared to the amicable set of rules and conflict management and settlement of the Ottonian dynasty. On the other hand, Henry had count Louis of Thuringia captured and imprisoned for his participation in the Saxon rebellion, which upset many princes. Henry's impertinent demonstrations of power, greatly diminished the overall atmosphere of the festivity. Some princes left the festival without permission, as others used the opportunity for conspiracies.
The marriage to Matilda produced no male heirs. The chronicler Hériman of Tournai mentions a child of Henry and Matilda that died soon after birth. A single source mentions a daughter of Henry named Bertha, who was probably illegitimate. She married Count Ptolemy II of Tusculum in 1117. The emperor's bond with the nobility of Rome through marriage was unique. In his conflict with the Pope and the struggle for domination in Italy, the Tusculan marriages of imperial partisans would receive particular honor.
Eventually, affairs in Italy compelled Henry to leave and appoint duke Frederick II of Hohenstaufen and his brother Conrad, the future king Conrad III as administrators.
Henry V, Holy Roman Emperor