ES
A.k.a. José María de Iparraguirre Balerdi
José María de Iparraguirre Balerdi (Villarreal de Urrechua, Guipúzcoa, 12 of August of 1820 - Ezquioga-Ichaso, 6 of June of 1881) was a poet and Spanish musician. Iparraguirre, considered the Basque bard, stood out for his compositions in Euskera. The most well-known and relevant is "Gernikako Arbola", hymn to the Tree of Guernica.