How did Henry VII consolidate his power after the Battle of Bosworth?

After defeating King Richard III on the battlefield, Henry VII had to move quickly to consolidate his power and secure his place on the throne. The country had been at civil war for more than fifty years, and the new king would have to be shrewd and diplomatic in order to establish peace and prosperity in his kingdom. His main methods of consolidating his power were: to eliminate potential rival claimants to the throne, to secure the financial stability of the crown, and to ensure a Tudor heir was produced to guarantee the future of the dynasty. Henry VII made a number of calculated decisions early on in his reign that allowed him to consolidate his power. One of Henry's first actions as king was to establish the official date of his reign from the day before the Battle of Bosworth, thus allowing him to designate those who sided with the Yorkists (supporters of Richard III) as potential traitors. By designating Yorkists as having committed a treasonous act not only associated opposition to Henry with opposition to the crown itself, but also allowed him to seize the property of some notable Yorkists, helping to shore up the crown finances. Secondly, Henry married Elizabeth of York, one of the main rival claimants to the throne. In doing so, he eliminated a potential rival whilst simultaneously uniting the two rival factions of the Wars of the Roses. Shortly after, Elizabeth produced an heir, Arthur, which further helped Henry to consolidate his power by securing the future of the Tudor dynasty. Lastly, Henry was officially crowned before he met parliament for the first time, implying therefore that his kingly authority stemmed from his own power and position, rather than it being granted by parliament. This again elevated Henry's authority and helped to consolidate his power and grip on the throne.