Before Maria Theresa, Transylvania's rulers used a variety of flags, which more often than not included family or factional symbols, such as the Báthory "wolf teeth"; Prince Sigismund also used a prototype of the Hungarian tricolor, but the practice died out long before the Habsburg conquest. Transylvania's Habsburg tricolor and the flag of Romania resemble each other superficially: Transylvania has blue-red-yellow displayed horizontally, while Romania has blue-yellow-red, vertically. The Transylvanian colors were codified from the heraldic tinctures, but Romanian scholars such as Iosif Sterca-Șuluțiu ascribe them a Dacian origin and links to the Romanian ethnogenesis. They became popular among the Romanian community of Transylvania in the later stages of the 1848 Revolution, after replacing combinations of blue, red and white.