Siman 14
Presented here for study, not as a practical ruling. The Shulchan Aruch rules by Sephardi custom, the Rema's glosses by Ashkenazi custom, and the Kitzur follows Ashkenazi custom. For a practical question, ask your rabbi.
א מֵתָה אִשְׁתּוֹ אוֹ אֶחָד מִקְּרוֹבָיו שֶׁחַיָּב לְהִתְאַבֵּל עָלָיו, עַד אֵימָתַי אָסוּר לִשָּׂא אִשָּׁה, נִתְבָּאֵר בְּטוּר יוֹרֶה דֵעָה סִימָן שצ"ב:
1 If his wife or one of his relatives that he has to mourn died, until when is it prohibited for one to marry? It is explained in Tur YD Chp:392.