Ka cika wannan jumlar: Ferdinand na II ya naɗa Leslie a matsayin mai kula da gidan sarauta a shekara ta 1634. An ɗaukaka matsayinsa na soja zuwa laftanar mai kula da filin yaƙi kuma shugaban masu gadin Sarkin Hungary, kuma aka ba shi umurnin runduna biyu. Nan da nan bayan da ya ci gaba, a lokacin rani na 1634 ya jagoranci nasara a kan Regensburg. A watan Satumbar 1634 ya yi yaƙi a nasarar da aka yi a mulkin mallaka a
Yaƙin Nordlingen. A cikin watannin da suka kai ga Zaman Lafiya na Prague, Leslie yana cikin Rathenow a Brandenburg. Masanin tarihi David Worthington ya yi iƙirarin cewa daga cikin duk masu kisan Wallenstein, Leslie ya sami lada mafi yawa kuma a ƙarshe aikinsa ya fi girma daga wannan taron.