import re
 
preposition_lst = ['DE LO ', 'DE LA ', 'DE LAS ', 'DEL ', 'DELS ', 'DE LES ', 'DO ', 'DA ', 'DOS ', 'DAS', 'DE ']
cases = ["DE BLAS ZAPATA", "MATIAS DE LA MANO", "LOPEZ FERNANDEZ DE VILLAVERDE", "DE MIGUEL DEL CORRAL", "VIDAL DE LA PEÑA", "MONTAVA DEL ARCO", "DOS CASAS VALLE"]
 
preps = r'(?:D(?:AS?|E(?:[ ]L(?:AS?|ES|O)|LS?)?|OS?) )?'
pattern = fr'^({preps}[^\W\d_]+)( {preps}[^\W\d_]+)?( de {preps}[^\W\d_]+)?$'
for case in cases:
    m = re.search(pattern, case, re.I) # re.I makes it case insensitive
    if m:
        print([x.strip() for x in m.groups() if x])
    else:
        print(f"No match for {case}")

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