| # | Children | Name | Born | Died | Father | Mother |
|---|
| 1 | | | b. 1216 | | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Alice l'Aigle |
| 2 | | | b. 04 Aug 1222 | d. 10 Mar 1287 | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
| 3 | | | b. Aft. 1223 | | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
| 4 | | | b. 1225 | | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
| 5 | | | b. 1226 | | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
| 6 | | | b. May 1227 | d. 21 Jun 1257 | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
| 7 | | | b. 1229 | d. 1270 | After the death of Earl Randulf, Lacy was made Earl of Lincoln on 22 Nov. 1232, in right of his wife, Margaret, daughter of Robert de Quincy, and Hawise, countess of Lincoln, a sister of Earl Randulf John de Lacy | Margaret de Quincy |
1192 - 1240 (48 years)