The Three Brothers was a piece of jewellery created in the late 14th century that consisted of three rectangular red spinels arranged around a central diamond. It was known for having been owned by a number of important historical figures. After its commission by John the Fearless, Duke of Burgundy, the Three Brothers was part of the Burgundian crown jewels for almost 100 years before passing into the possession of the German banker Jakob Fugger. The jewel was eventually sold to King Edward VI and became part of the Crown Jewels of England from 1551 to 1643. It was worn prominently by Queen Elizabeth I and King James I. In the early 1640s, Henrietta Maria, the wife of King Charles I, attempted to sell the jewel to raise funds for the English Civil War, but it is unclear if she succeeded. Its whereabouts after 1645 remain unknown. This miniature painting of the Three Brothers, drawn at a scale of 1:1, was commissioned by the city of Basel to serve as an inventory but also as an advertisement to potential buyers around 1500.Painting credit: unknown; photographed by Peter Portner