In Kingdom Come: Deliverance 2, Lord Semine and Agnes's wedding faces a snag: the groom's gift, a sword, vanishes. Your mission: recover it.
Finding the Sword Thief
Radovan reveals the missing sword, mentioning a suspicious yellow-clad individual. Investigating leads you to the stable's upper level, where you find Hans, a yellow-dressed man, romantically involved, but innocent. Hans, however, witnessed Svatya, the bailiff's son (and the bride's brother), stealing the sword. He doesn't know where Svatya hid it.
Confronting Svatya
Svatya is located near the musicians by the stables, visibly possessing the sword. He confesses to the theft, motivated by resentment towards Old Semine. He discarded the sword in a nearby pond to embarrass Old Semine.
Retrieving the Sword
The sword's location is revealed: the pond. If you danced with Myshka, she'll lead you there; otherwise, locate the pond behind Radovan.
Retrieve the sword from the pond. Return to Radovan; you can choose to reveal Svatya's actions or remain discreet. Once the sword is returned, the wedding commences, allowing you to progress to the next main quest. Remember to complete any time-sensitive pre-wedding tasks before speaking to Radovan.