Was treated by Manuel 1 in a way worthy of the throne of David
ἀξίως τοῦ Δαβὶδ θρόνου. Kinnamos 185.11
He was the third Baldwin to be king of Jerusalem
dominus Balduinus tercius. William of Tyre bk. 16, 1.2
As a youth, his great natural ability gave promise of his later excellent character; he was handsome, dignified, intelligent and pre-eminent as a speaker; he was tall, well-proportioned, with a healthy colour like Melisende 4002 and even Baldwin 52; he had rather prominent eyes, yellowish hair and full beard
William of Tyre bk. 16, 1.7-22
He was neither thin like Melisende 4002 nor plump like Amalric 51; he had good manners, was generous to a fault, pious, with an excellent memory so that he greeted all by their names, very popular, blunt but accepting others' bluntness, a womaniser as a youth, then a faithful husband, abstemious in food and drink
William of Tyre bk. 16, 2.1-57
A young man of excellent character
inclitae indolis adulescens. William of Tyre bk. 17, 1.38-39