Caesar still took three more years, until 45 BCE, to overcome his Roman adversaries in Africa and Spain, as well as to squash trouble from Pharnaces, the son and usurper of Mithradates. Between crossing the Rubicon and his death in March 44 BCE, Caesar made only fleeting visits to Rome; the longest was the five-month stretch from October 45 BCE. From the point of view of the city, he became a largely absent dictator.