San Sebastian 1912:
The tournament was held from February 19 to March 23, 1912. This tournament was one of five that Rubinstein won in a one year time span (San Sebastian, Breslau, Bad Pistyan, Warsaw, and Vilna) !
http://en.wikipedia.org/wiki/San_Sebastian_chess_tournamentSan Sebastian 2012:
www.chessbase.com/newsdetail.asp?newsid=7802