I want to know what letters aren't included in the following text, so give me a list of all the letters that are used in the text I've provided in alphabetical order so that I can see what ones are missing. Put all in lowercase form, even if they were capitals in the text, and don't repeat any. 

Merkel was born Angela Dorothea Kasner in 1954, in Hamburg, West Germany, the daughter of Horst Kasner (1926–2011; né Kaźmierczak),[22][23] a Lutheran pastor and a native of Berlin, and his wife Herlind (1928–2019; née Jentzsch), born in Danzig (now Gdańsk, Poland), a teacher of English and Latin. She has two younger siblings, Marcus Kasner, a physicist, and Irene Kasner, an occupational therapist. In her childhood and youth, Merkel was known among her peers by the nickname "Kasi", derived from her last name Kasner.[24]
a, b, c, d, e, é,  f, g, h, i, j, k, l, m, n, ń, o, p, r, s, t, u, v, w, y, z, ź