Ụfọdụ ndị ọkọ akụkọ ihe mere eme na-ele oge site na 1621 ruo 1625 anya dị ka akụkụ dị iche nke Agha Afọ Iri Atọ, na-akpọ ya "oge Palatinate". Site na mmeri nke ndị agha Protestant na White Mountain na ọpụpụ nke onye isi nke Transylvania, nnukwu Bohemia dị jụụ. Agbanyeghị, agha na Palatinate gara n'ihu: Ndị isi ndị agha mercenary ama ama <unk> dị ka, ọkachasị, Count Ernst von Mansfeld <unk> nyeere Frederick V aka ịgbachitere mba ya, Upper na Rhine Palatinate. Oge a nke agha ahụ nwere ọtụtụ agha ndị pere mpe, nke ndị agha Imperial na ndị agha Spain gbara. Mannheim na Heidelberg dara na 1622, ma emesịa nyefee Frankenthal afọ abụọ ka e mesịrị, si otú a na-ahapụ Palatinate n'aka ndị Spen.
Ndị agha Alaeze Ukwu na ndị agha Spen.