Jacques de Dinant explained

Jacques de Dinant was a medieval Bishop of Arras, France.

He was appointed bishop by Pope Innocent IV on 4 October 1247, and he resigned as bishop in 1259.^{[1] [2]}
He was also a considerable scholar of the 13th century. He was educated in Northern France or Holland and in the latter part of his life taught at the University of Bologna in the department of Rhetoric.

His works include:

• Summa Dictaminis
• Breviloquium
• Ars Arengandi
• Sex formulae dictaminis
• Exordia in linea clericali and
• Exordia in linea seculari.^[3]

References

1. Hierarchia Catholica Medii et Recentioris Aevi, Volume 1, Page 115.
2. Le Petit Episcopologe, Issue 124, Number 11,100
3. Emil J. Polak, A Textual Study of Jacques de Dinant's Summa Dictaminis (Librairie Droz, 1975) page 14.