original_query: What was the significance of uncle Michael the Brave's ascent through the ranks of Wallachian boyardom? What is the most relevant chunk to answer the query?
query: What was the significance of Michael the Brave's ascent through the ranks of Wallachian boyardom in relation to Marcu Cercel?
answer: Michael the Brave's ascent to power in Wallachia ultimately led to Marcu Cercel's appointment as Prince of Moldavia in 1600, as Michael used Marcu as his representative or regional co-ruler.  Later, after Michael's death, Marcu allied with Michael's enemies.