Theobald's Trust Master reward is the Star Trail.
Entries for different versions of Wado.4★ - No. 1177: Theobald, the older brother of Sieghard, is a man who's very particular about beauty. A generous man who values form and likes ostentation, he is to thank for the theatrical behavior of the mansion's residents. A doting brother, he praises his siblings constantly for the smallest of things.5★ - No. 1178: The oldest son in a family that values beauty, he raised his younger siblings with the utmost care and affection. He chose a riding crop as his weapon when he debuted in high society. While he doesn't often use his weapon to attack, it symbolizes his conviction to never forget the grace and elegance of his noble family.6★ - No. 1179: A nobleman who once lived in Paladia. He devoted himself to protecting countless important cultural elements and figures from Aldore's tyranny. He continued to wait at his family's mansion his entire life, believing that his brother Sieghard would return to Paladia one day.
Theobald's stats at his highest levels are as follows (with no passive abilities taken into account), along with the maximum amount of stat points that can be increased through pot-enhancements:
Theobald can equip the following weapons: Dagger, Staff, Rod, Whip, Mace.
He can equip the following armor: Hat, Clothes, Robe.
He can equip accessories.