Felicián; killed 17 April 1330) was a Hungarian nobleman and soldier in the first half of the 14th century, who unsuccessfully attempted to assassinate Charles I of Hungary and the entire royal family in Visegrád.

According to historian György Györffy, the ancestor of the kindred was a leader of those Székely militiamen, who were settled for the purpose of border surveillance during the reign of Stephen I of Hungary.

As a partisan of Duke Stephen, he reached the zenith of his influence in the period starting with the death of Béla IV, when he also held temporal offices in addition to his bishopric.

They had three children, his namesake son and heir Felician IV, and two daughters, Sebe, who married local county noble Kopaj Palásti, and Clara.

He acted as an arbitrator during the legal process which determined and designated the borders of Pöstyén (today part of Szécsény) in Nógrád County.

[2] The death of Andrew III resulted a civil war between various claimants to the throne—Charles of Anjou, Wenceslaus of Bohemia, and Otto of Bavaria—, which lasted for seven years.

On 10 November 1308, Felician attended a meeting in the Pauline Monastery of Kékes at the side of his lord at which the papal legate, Cardinal Gentile Portino da Montefiore, managed to persuade Matthew to accept King Charles' rule.

In the same time, Felician raided and pillaged the village of Baj in Pilis County, which was then the property of the Diocese of Veszprém, according to a charter dated October 1310.

[7] It is possible that he is also identical with that "Fulcyanus", who devastated the church estate of Vágszerdahely (present-day Dolná Streda, Slovakia), leading a Csák military force at the turn of 1311–1312.

One of these sanctioned nobles was Felician, who remained a partisan of Matthew Csák even after an internal war between his familiares over the ownership of Jókő Castle (today Dobrá Voda, Slovakia) in 1316.

Historian Krisztina Tóth argued that Felician was replaced as castellan of Sempte because the tensions between Charles and Duke Frederick the Fair of Austria emerged at that time.

In the summer of 1328, Hungarian and Bohemian troops jointly invaded Austria and routed the Austrian army on the banks of the Leitha River.

His neighbor and old nemesis Ladislaus Ákos filed a lawsuit against Felician and his namesake son, but they were not present at local county court.

[14] Although in these times the people of Hungary enjoyed the loved tranquility of peace and the kingdom was on all sides secure against its enemies, yet the hater of peace and the sower of envy, the devil, put into the heart of a certain soldier named Felicianus, of the line of Zaah, who was already advanced in years and his hair silvered, that he would in one day kill with his sword his lord King Charles and Queen Elizabeth, and the King's two sons Lays and Andreas.

Then Johannes, son of Alexander from the county of Potok, a youth of good disposition who was the Queen's second cup-bearer, threw himself upon Felicianus as upon a wild beast and struck at him with a dagger [bicellus] between the neck and the shoulder with such force that he felled him to the ground.