Any evaluation of the stylistic significance of the Rucellai Palace must take into account similar Florentine residences of the period, such as the Palazzo Medici Riccardi (then Palazzo de' Medici), the Palazzo Strozzino, the Palazzo Strozzi, and the Palazzo Spinelli. An accurate appraisal of the Rucellai Palace's architectural importance has been hindered by uncertainties concerning when and by whom it was constructed. Traditionally, and supported by some 16th-century sources, it has been dated to the period 1446-51, making the facades of both the Medici and Rucellai palaces contemporaries.