 The earliest reliable source of Árpád 's life is an early 10th @-@ century document , the Continuation of the Chronicle by George the Monk . It narrates that the Byzantine Emperor Leo VI the Wise ( r . 886 – 912 ) sent his envoy Nicetas Sclerus to the Hungarians in 894 or 895 " to give presents " and incite them against the Bulgarian Empire . Sclerus met with their two leaders , Árpád and Kurszán , at the Lower Danube . Sclerus 's mission succeeded : a Hungarian army soon crossed the Danube on Byzantine ships against Bulgaria . An interpolation in Porphyrogenitus 's text suggests that the invading Hungarians were under the command of Árpád 's son , Liüntika . 
