He does not appear to have stayed long in Toledo, for in 1286 he married the daughter of his oldest brother, Jehiel, who is not known to have left Germany before 1305.
He was held in great esteem by the members of his congregation, and when, on account of some disagreement, he manifested a desire to remove to Seville, they urged him to remain and doubled his salary.
In the agreement signed by Asher and his sons on October 20, 1314, Judah and his brother Jacob were appointed trustees.
Judah approved heartily of this charitable institution, and at his request, on September 18, 1346, his sons signed an agreement making a similar arrangement in regard to the disposition of their own earnings.
Judah was a recognized authority on Halakha, and his responsa, together with a fragment of his commentary on Shabbat, were published, under the title of Zikron Yehudah, by David Cassel (Berlin, 1846).