11 April 1250

↓

10 May 1250

11 May 1250

↓

8 June 1250

9 June 1250

↓

8 July 1250

9 July 1250

↓

6 August 1250

7 August 1250

↓

5 September 1250

6 September 1250

↓

4 October 1250

5 October 1250

↓

3 November 1250

4 November 1250

↓

2 December 1250

3 December 1250

↓

1 January 1251

2 January 1251

↓

30 January 1251

31 January 1251

↓

1 March 1251

2 March 1251

↓

31 March 1251