A more thorough explanation:

Primae preces is a Latin term that refers to the right of a sovereign to appoint someone to fill a vacant prebendary office after the sovereign's accession. This right was exercised during the reign of Edward I.

During the reign of Edward I, the king had the power to appoint someone to fill a vacant prebendary office. This was known as primae preces.

For example, if a prebendary office became vacant due to the death or resignation of the previous holder, the king could choose who would fill that position. This allowed the king to have some control over the church and its officials.

Another example of primae preces can be seen in the appointment of Thomas Wolsey as Bishop of Lincoln in 1514. Wolsey was appointed by King Henry VIII, who exercised his right of primae preces to fill the vacant position.

These examples illustrate how primae preces gave the sovereign the power to appoint important officials within the church, which allowed them to exert some control over the church's activities.