Noblesse Oblige.

Primero Espada - Coyote Starrk
Fought Kyoraku, Ukitake, Rose, and Love; killed by Shunsui Kyoraku
Notable fight: Took on 2 elder captains with their Shikai and 2 Visored former captains with their Shikai

Segunda Espada - Barragan Luisenbarn
Fought Soifon, Omaeda, and Hachi; killed by Hachigen Ushoda
Notable fight: Took on 1 captain with her Bankai, 1 negligible vice captain, and 1 Visored former Kido Corps vice captain

Espada Tres - Tia Halibel
Fought Hitsugaya, Lisa, and Hiyori; killed by Sousuke Aizen
Notable fight: Took on 1 captain with his Bankai, 2 Visored vice captains with their Shikai

Espada Cuatro - Ulquiorra Cifer
Fought Ichigo, Ishida, Grimmjow, and Urahara; killed by Hollow Kurosaki Ichigo
Notable fight: Took on 1 Quincy and Visored Ichigo with his Bankai in his new Hollow form

Quinto Espada - Nnoitra Jiruga
Fought Ichigo, Nell, Kenpachi, and Chad; killed by Kenpachi Zaraki
Notable fight: Took on Visored Ichigo with his Bankai, 1 former Espada Tres in her resurreccion form, and 1 captain with unnaturally strong reiatsu and killing instinct

Sexta Espada - Grimmjow Jaegerjaquez
Fought Ichigo, Rukia, Shinji, Ulquiorra, Luppi, Tousen; defeated by Hollow Kurosaki Ichigo and critically injured by Nnoitra Jiruga
Notable fight: Took on Visored Ichigo with his Bankai, 1 vice captain level Shinigami with her Shikai, and 1 Visored former captain

Septima Espada - Zommari Leroux
Fought Byakuya; killed by Kuchiki Byakura
Notable fight: Took on 1 captain with his Bankai

Octava Espada - Szayel Aporro Grantz
Fought Renji, Ishida, Pesche, Donochakka, Nemo, and Mayuri; killed by Mayuri Kurotsuchi
Notable fight: Took on 1 vice captain with his Bankai, 1 Quincy, 2 former Fraccion, 1 vice captain, and 1 captain with his Bankai

Noveno Espada - Aaroniero Arruruerie
Fought Rukia; killed by Kuchiki Rukia
Notable fight: Took on 1 vice captain level Shinigami with her Shikai

Decimo Espada - Yammy Rialgo
Fought Ichigo, Urahara, Yoruichi, Chad, Orihime, Hitsugaya, Renji, Ishida, Rukia, Loly; defeated many times in sealed form, but his resurreccion supposedly makes him the Cero Espada
Notable fight: 1 vice captain level Shinigami, 1 human with Hollow powers, 1 vice captain with his Shikai