Tryphon of Constantinople
As Patriarch, he enjoyed the support of emperor Romanus Lecapenus who funded his projects to help the poor and the monasteries.
In 931, that all changed as Romanus asked him to step down so he could appoint his own son, Theophylactus, as Patriarch. Tryphon refused to resign in favour of the 14-year old boy as this would cause a scandal.
Romanus then resorted to trickery: he enlisted the help of Caesarea Metropolitan Theophanius who obtained Tryphon's signature on a blank piece of paper. The resignation was then written above the signature and Tryphon was removed. Theophylactus was ordained in February 933 after he attained the age of 16.