The Collaborative International Dictionary of English v.0.48:

Alphonsine \Al*phon"sine\ ([a^]l*f[o^]n"s[i^]n), a.
   Of or relating to Alphonso X., the Wise, King of Castile
   (1252-1284).
   [1913 Webster]

   Alphonsine tables, astronomical tables prepared under the
      patronage of Alphonso the Wise. --Whewell.
      [1913 Webster]